formatting and code style.

core/src/main/java/com/github/weisj/darklaf/DarkLaf.java

@@ -207,7 +207,7 @@ public class DarkLaf extends BasicLookAndFeel {
             // (Alloy license problem)
             installCutCopyPasteShortcuts(tableInputMap, true);
         }
-        final InputMap buttonInputMap  = (InputMap) defaults.get("Button.focusInputMap");
+        final InputMap buttonInputMap = (InputMap) defaults.get("Button.focusInputMap");
         if (buttonInputMap != null && !SystemInfo.isMac) {
             buttonInputMap.put(KeyStroke.getKeyStroke("ENTER"), "pressed");
             buttonInputMap.put(KeyStroke.getKeyStroke("released ENTER"), "released");
@@ -244,7 +244,8 @@ public class DarkLaf extends BasicLookAndFeel {
     private void loadSystemOverwrites(final Properties uiProps, final UIDefaults defaults) {
         Properties overwrites = PropertyLoader.loadProperties(DarkLaf.class, "overwrites", "properties/");
         overwrites.values().removeIf(v -> System.getProperty(SYSTEM_PROPERTY_PREFIX + v.toString()) == null);
-        overwrites.entrySet().forEach(e -> e.setValue(System.getProperty(SYSTEM_PROPERTY_PREFIX + e.getValue().toString())));
+        overwrites.entrySet().forEach(
+            e -> e.setValue(System.getProperty(SYSTEM_PROPERTY_PREFIX + e.getValue().toString())));
         PropertyLoader.putProperties(overwrites, uiProps, defaults);
     }
 

core/src/main/java/com/github/weisj/darklaf/LafManager.java

@@ -33,6 +33,7 @@ import javax.swing.*;
 import java.awt.*;
 import java.io.IOException;
 import java.io.InputStream;
+import java.lang.reflect.InvocationTargetException;
 import java.util.Properties;
 import java.util.logging.Level;
 import java.util.logging.LogManager;
@@ -48,7 +49,7 @@ public final class LafManager {
     private static Theme theme;
     private static boolean logEnabled = false;
     private static boolean decorationsOverwrite = true;
-    private static Properties properties = new Properties();
+    private static final Properties properties = new Properties();
 
     static {
         enableLogging(true);
@@ -65,7 +66,8 @@ public final class LafManager {
             LogManager.getLogManager().reset();
         } else {
             try (InputStream inputStream = DarkLaf.class.getClassLoader()
-                                                        .getResourceAsStream("com/github/weisj/darklaf/log/logging.properties")) {
+                                                        .getResourceAsStream(
+                                                            "com/github/weisj/darklaf/log/logging.properties")) {
                 if (inputStream != null) {
                     Logger.getGlobal().fine("Loading logging configuration.");
                     LogManager.getLogManager().readConfiguration(inputStream);
@@ -79,8 +81,8 @@ public final class LafManager {
     }
 
     /**
-     * Returns whther custom decorations should be used.
+     * Returns whther custom decorations should be used. If this returns true decorations still might not be used if the
-     * If this returns true decorations still might not be used if the theme or platform don't support them.
+     * theme or platform don't support them.
      *
      * @return true if decorations should be used.
      */
@@ -89,9 +91,8 @@ public final class LafManager {
     }
 
     /**
-     * Set globally whether decorations are enabled. By default this is true.
+     * Set globally whether decorations are enabled. By default this is true. Decorations are used if this value is set
-     * Decorations are used if this value is set to true and the current platform and theme support
+     * to true and the current platform and theme support custom decorations.
-     * custom decorations.
      *
      * @param enabled true if decorations should be used if available.
      */
@@ -145,8 +146,11 @@ public final class LafManager {
      */
     public static void reloadIconTheme() {
         try {
-            setTheme(getTheme().getClass().newInstance());
+            setTheme(getTheme().getClass().getDeclaredConstructor().newInstance());
-        } catch (InstantiationException | IllegalAccessException e) {
+        } catch (InstantiationException
+            | IllegalAccessException
+            | NoSuchMethodException
+            | InvocationTargetException e) {
             e.printStackTrace();
         }
     }
@@ -171,9 +175,9 @@ public final class LafManager {
             UIManager.setLookAndFeel(DarkLaf.class.getCanonicalName());
             updateLaf();
         } catch (final ClassNotFoundException
-                | InstantiationException
+            | InstantiationException
-                | IllegalAccessException
+            | IllegalAccessException
-                | UnsupportedLookAndFeelException e) {
+            | UnsupportedLookAndFeelException e) {
             e.printStackTrace();
         }
     }
@@ -197,9 +201,8 @@ public final class LafManager {
     /**
      * Set a custom property.
      * <p>
-     * Note: These properties are loaded
+     * Note: These properties are loaded after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be
-     * after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be used to overwrite the values
+     * used to overwrite the values specified in `[theme]_defaults.properties`.
-     * specified in `[theme]_defaults.properties`.
      *
      * @param key   the key.
      * @param value the value.
@@ -211,9 +214,8 @@ public final class LafManager {
     /**
      * Remove a custom property.
      * <p>
-     * Note: These properties are loaded
+     * Note: These properties are loaded after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be
-     * after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be used to overwrite the values
+     * used to overwrite the values specified in `[theme]_defaults.properties`.
-     * specified in `[theme]_defaults.properties`.
      *
      * @param key the key.
      */
@@ -224,9 +226,8 @@ public final class LafManager {
     /**
      * Remove all custom properties.
      * <p>
-     * Note: These properties are loaded
+     * Note: These properties are loaded after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be
-     * after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be used to overwrite the values
+     * used to overwrite the values specified in `[theme]_defaults.properties`.
-     * specified in `[theme]_defaults.properties`.
      */
     public static void clearProperties() {
         properties.clear();
@@ -235,9 +236,8 @@ public final class LafManager {
     /**
      * Get the custom properties.
      * <p>
-     * Note: These properties are loaded
+     * Note: These properties are loaded after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be
-     * after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be used to overwrite the values
+     * used to overwrite the values specified in `[theme]_defaults.properties`.
-     * specified in `[theme]_defaults.properties`.
      */
     public static Properties getUserProperties() {
         return properties;
@@ -246,9 +246,8 @@ public final class LafManager {
     /**
      * Remove a custom property.
      * <p>
-     * Note: These properties are loaded
+     * Note: These properties are loaded after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be
-     * after {@link Theme#loadDefaults(Properties, UIDefaults)} and should only be used to overwrite the values
+     * used to overwrite the values specified in `[theme]_defaults.properties`.
-     * specified in `[theme]_defaults.properties`.
      *
      * @param key the key.
      * @return the value associated with `key`.

core/src/main/java/com/github/weisj/darklaf/color/ColorWrapper.java

@@ -43,7 +43,11 @@ public class ColorWrapper extends Color {
     }
 
     public void setColor(final Color color) {
-        if (color == null) { this.color = Color.BLACK; } else this.color = color;
+        if (color == null) {
+            this.color = Color.BLACK;
+        } else {
+            this.color = color;
+        }
     }
 
     @Override

core/src/main/java/com/github/weisj/darklaf/components/ClosableTabComponent.java

@@ -55,7 +55,7 @@ public class ClosableTabComponent extends JPanel {
 
     protected static class TabLabel extends JLabel {
 
-        private ClosableTabComponent tabComponent;
+        private final ClosableTabComponent tabComponent;
 
         protected TabLabel(final ClosableTabComponent tabComponent) {
             this.tabComponent = tabComponent;
@@ -76,19 +76,6 @@ public class ClosableTabComponent extends JPanel {
     protected static class TabButton extends JButton implements ActionListener {
 
         private final ClosableTabComponent tabComponent;
-        private final MouseListener mouseListener = new MouseAdapter() {
-            @Override
-            public void mouseEntered(final MouseEvent e) {
-                ComponentUI ui = tabComponent.pane.getUI();
-                if (ui instanceof DarkTabbedPaneUI) {
-                    int i = tabComponent.pane.indexOfTabComponent(tabComponent);
-                    if (i != -1) {
-                        ((DarkTabbedPaneUI) ui).setRolloverTab(i);
-                        tabComponent.pane.repaint();
-                    }
-                }
-            }
-        };
 
         protected TabButton(final ClosableTabComponent tabComponent) {
             this.tabComponent = tabComponent;
@@ -99,6 +86,19 @@ public class ClosableTabComponent extends JPanel {
             setIcon(UIManager.getIcon("TabbedPane.tabCloseIcon"));
             setRolloverIcon(UIManager.getIcon("TabbedPane.tabCloseHoverIcon"));
             addActionListener(this);
+            MouseListener mouseListener = new MouseAdapter() {
+                @Override
+                public void mouseEntered(final MouseEvent e) {
+                    ComponentUI ui = tabComponent.pane.getUI();
+                    if (ui instanceof DarkTabbedPaneUI) {
+                        int i = tabComponent.pane.indexOfTabComponent(tabComponent);
+                        if (i != -1) {
+                            ((DarkTabbedPaneUI) ui).setRolloverTab(i);
+                            tabComponent.pane.repaint();
+                        }
+                    }
+                }
+            };
             addMouseListener(mouseListener);
         }
 

core/src/main/java/com/github/weisj/darklaf/components/ColorPipetteBase.java

@@ -106,8 +106,8 @@ public abstract class ColorPipetteBase implements ColorPipette, AWTEventListener
         Window picker = getOrCreatePickerWindow();
         Toolkit.getDefaultToolkit().addAWTEventListener(this,
                                                         AWTEvent.MOUSE_MOTION_EVENT_MASK
-                                                                | AWTEvent.MOUSE_EVENT_MASK
+                                                        | AWTEvent.MOUSE_EVENT_MASK
-                                                                | AWTEvent.KEY_EVENT_MASK);
+                                                        | AWTEvent.KEY_EVENT_MASK);
         updateLocation();
         picker.setVisible(true);
         return picker;

core/src/main/java/com/github/weisj/darklaf/components/DefaultColorPipette.java

@@ -30,11 +30,7 @@ import com.github.weisj.darklaf.util.TimerUtil;
 
 import javax.swing.*;
 import java.awt.*;
-import java.awt.event.FocusAdapter;
+import java.awt.event.*;
-import java.awt.event.FocusEvent;
-import java.awt.event.KeyEvent;
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseEvent;
 import java.awt.geom.Ellipse2D;
 import java.awt.image.BufferedImage;
 
@@ -47,7 +43,7 @@ public class DefaultColorPipette extends ColorPipetteBase {
     private final Rectangle captureRect = new Rectangle();
     private final Point previousLocation = new Point();
     private final Timer timer;
-    protected Color borderColor;
+    protected final Color borderColor;
     private Graphics2D zoomGraphics;
     private BufferedImage zoomImage;
 
@@ -213,8 +209,8 @@ public class DefaultColorPipette extends ColorPipetteBase {
             if (pipette.isKeyDown() && pipette.getPressedKeyCode() == KeyEvent.VK_SHIFT) {
                 Shape oldCLip = g.getClip();
                 Ellipse2D.Float circ = new Ellipse2D.Float(icon.getIconWidth() - 4, 2,
-                                               getWidth() - icon.getIconWidth() - 2 + 4,
+                                                           getWidth() - icon.getIconWidth() - 2 + 4,
-                                               getHeight() - 2 - icon.getIconHeight() + 4);
+                                                           getHeight() - 2 - icon.getIconHeight() + 4);
                 g.setClip(circ);
                 g.drawImage(pipette.zoomImage, icon.getIconWidth() - 4, 2, null);
                 g.setClip(oldCLip);

core/src/main/java/com/github/weisj/darklaf/components/JXPopupMenu.java

@@ -49,15 +49,15 @@ public class JXPopupMenu extends JPopupMenu {
         super(label);
     }
 
+    @SuppressWarnings("unchecked")
     @Override
     public void show(final Component invoker, final int x, final int y) {
         Point p = new Point(x, y);
         if (invoker != null) {
-            JXLayer layer = DarkUIUtil.getParentOfType(JXLayer.class, invoker);
+            JXLayer<? extends JComponent> layer = DarkUIUtil.getParentOfType(JXLayer.class, invoker);
             if (layer != null && layer.getUI() instanceof TransformUI) {
                 TransformUI ui = (TransformUI) layer.getUI();
                 p = SwingUtilities.convertPoint(invoker, p, layer);
-                //noinspection unchecked
                 AffineTransform transform = ui.getPreferredTransform(layer.getSize(), layer);
                 transform.transform(p, p);
                 super.show(layer, p.x, p.y);

core/src/main/java/com/github/weisj/darklaf/components/OverlayScrollPane.java

@@ -286,11 +286,11 @@ public class OverlayScrollPane extends JLayeredPane {
         @Override
         public boolean contains(final int x, final int y) {
             if (scrollPane.horizontalScrollBar.isVisible()
-                    && scrollPane.horizontalScrollBar.getBounds().contains(x, y)) {
+                && scrollPane.horizontalScrollBar.getBounds().contains(x, y)) {
                 return true;
             }
             return scrollPane.verticalScrollBar.isVisible()
-                    && scrollPane.verticalScrollBar.getBounds().contains(x, y);
+                   && scrollPane.verticalScrollBar.getBounds().contains(x, y);
         }
 
 

core/src/main/java/com/github/weisj/darklaf/components/ScrollPopupMenu.java

@@ -83,8 +83,8 @@ public class ScrollPopupMenu extends JPopupMenu {
         view = new JPanel(new BorderLayout());
         view.add(this, BorderLayout.CENTER);
         OverlayScrollPane overlayScrollPane =
-                new OverlayScrollPane(view, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
+            new OverlayScrollPane(view, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
-                                      JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
+                                  JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
         JScrollBar bar = overlayScrollPane.getVerticalScrollBar();
         bar.putClientProperty("JScrollBar.thin", Boolean.TRUE);
         DarkUIUtil.doNotCancelPopupSetup(bar);

core/src/main/java/com/github/weisj/darklaf/components/border/BubbleBorder.java

@@ -52,7 +52,7 @@ public class BubbleBorder extends AbstractBorder {
     /**
      * Create new TextBubbleBorder with given colour.
      *
-     * @param color color of border
+     * @param color color of border.
      */
     public BubbleBorder(final Color color) {
         this(color, 2, 4, 5);
@@ -66,7 +66,7 @@ public class BubbleBorder extends AbstractBorder {
      * @param radius      corner radius of border.
      * @param pointerSize size of pointer. You can set this size to 0 to achieve no pointer, but it is not desirable.
      *                    The appropriate method for this is to set using {@link BubbleBorder#setPointerSide(Alignment)}
-     *                    to {@link Alignment#CENTER}
+     *                    to. {@link Alignment#CENTER}
      */
     public BubbleBorder(final Color color, final int thickness,
                         final int radius, final int pointerSize) {

core/src/main/java/com/github/weisj/darklaf/components/border/DarkBorders.java

@@ -33,9 +33,9 @@ import java.util.WeakHashMap;
 
 public final class DarkBorders {
 
-    private static Map<WeakLineBorder, WeakReference<WeakLineBorder>> lineBorderMap =
+    private static final Map<WeakLineBorder, WeakReference<WeakLineBorder>> lineBorderMap =
         Collections.synchronizedMap(new WeakHashMap<>());
-    private static Map<WeakLineBorder, WeakReference<WeakLineBorder>> lineWidgetBorderMap =
+    private static final Map<WeakLineBorder, WeakReference<WeakLineBorder>> lineWidgetBorderMap =
         Collections.synchronizedMap(new WeakHashMap<>());
 
 

core/src/main/java/com/github/weisj/darklaf/components/border/DropShadowBorder.java

@@ -77,7 +77,8 @@ public class DropShadowBorder implements Border, Serializable {
 
     public DropShadowBorder(final Color shadowColor, final int shadowSize,
                             final float shadowOpacity, final int cornerSize, final boolean showTopShadow,
-                            final boolean showLeftShadow, final boolean showBottomShadow, final boolean showRightShadow) {
+                            final boolean showLeftShadow, final boolean showBottomShadow,
+                            final boolean showRightShadow) {
         setShadowColor(shadowColor);
         setShadowSize(shadowSize);
         setShadowOpacity(shadowOpacity);
@@ -166,8 +167,8 @@ public class DropShadowBorder implements Border, Serializable {
             if (showLeftShadow) {
                 assert topLeftShadowPoint != null && bottomLeftShadowPoint != null;
                 Rectangle leftShadowRect =
-                        new Rectangle(x, topLeftShadowPoint.y + shadowSize, shadowSize,
+                    new Rectangle(x, topLeftShadowPoint.y + shadowSize, shadowSize,
-                                      bottomLeftShadowPoint.y - topLeftShadowPoint.y - shadowSize);
+                                  bottomLeftShadowPoint.y - topLeftShadowPoint.y - shadowSize);
                 g2.drawImage(images[Position.LEFT.ordinal()],
                              leftShadowRect.x, leftShadowRect.y,
                              leftShadowRect.width, leftShadowRect.height, null);
@@ -176,9 +177,9 @@ public class DropShadowBorder implements Border, Serializable {
             if (showBottomShadow) {
                 assert bottomLeftShadowPoint != null && bottomRightShadowPoint != null;
                 Rectangle bottomShadowRect =
-                        new Rectangle(bottomLeftShadowPoint.x + shadowSize, y + height - shadowSize,
+                    new Rectangle(bottomLeftShadowPoint.x + shadowSize, y + height - shadowSize,
-                                      bottomRightShadowPoint.x - bottomLeftShadowPoint.x - shadowSize,
+                                  bottomRightShadowPoint.x - bottomLeftShadowPoint.x - shadowSize,
-                                      shadowSize);
+                                  shadowSize);
                 g2.drawImage(images[Position.BOTTOM.ordinal()],
                              bottomShadowRect.x, bottomShadowRect.y,
                              bottomShadowRect.width, bottomShadowRect.height, null);
@@ -187,8 +188,8 @@ public class DropShadowBorder implements Border, Serializable {
             if (showRightShadow) {
                 assert topRightShadowPoint != null && bottomRightShadowPoint != null;
                 Rectangle rightShadowRect =
-                        new Rectangle(x + width - shadowSize, topRightShadowPoint.y + shadowSize, shadowSize,
+                    new Rectangle(x + width - shadowSize, topRightShadowPoint.y + shadowSize, shadowSize,
-                                      bottomRightShadowPoint.y - topRightShadowPoint.y - shadowSize);
+                                  bottomRightShadowPoint.y - topRightShadowPoint.y - shadowSize);
                 g2.drawImage(images[Position.RIGHT.ordinal()],
                              rightShadowRect.x, rightShadowRect.y,
                              rightShadowRect.width, rightShadowRect.height, null);
@@ -197,8 +198,8 @@ public class DropShadowBorder implements Border, Serializable {
             if (showTopShadow) {
                 assert topLeftShadowPoint != null && topRightShadowPoint != null;
                 Rectangle topShadowRect =
-                        new Rectangle(topLeftShadowPoint.x + shadowSize, y,
+                    new Rectangle(topLeftShadowPoint.x + shadowSize, y,
-                                      topRightShadowPoint.x - topLeftShadowPoint.x - shadowSize, shadowSize);
+                                  topRightShadowPoint.x - topLeftShadowPoint.x - shadowSize, shadowSize);
                 g2.drawImage(images[Position.TOP.ordinal()],
                              topShadowRect.x, topShadowRect.y,
                              topShadowRect.width, topShadowRect.height, null);
@@ -210,11 +211,13 @@ public class DropShadowBorder implements Border, Serializable {
             }
             if (showLeftShadow || showBottomShadow) {
                 assert bottomLeftShadowPoint != null;
-                g2.drawImage(images[Position.BOTTOM_LEFT.ordinal()], bottomLeftShadowPoint.x, bottomLeftShadowPoint.y, null);
+                g2.drawImage(images[Position.BOTTOM_LEFT.ordinal()], bottomLeftShadowPoint.x, bottomLeftShadowPoint.y,
+                             null);
             }
             if (showRightShadow || showBottomShadow) {
                 assert bottomRightShadowPoint != null;
-                g2.drawImage(images[Position.BOTTOM_RIGHT.ordinal()], bottomRightShadowPoint.x, bottomRightShadowPoint.y, null);
+                g2.drawImage(images[Position.BOTTOM_RIGHT.ordinal()], bottomRightShadowPoint.x,
+                             bottomRightShadowPoint.y, null);
             }
             if (showRightShadow || showTopShadow) {
                 assert topRightShadowPoint != null;

core/src/main/java/com/github/weisj/darklaf/components/border/WeakLineBorder.java

@@ -25,10 +25,10 @@ package com.github.weisj.darklaf.components.border;
 
 class WeakLineBorder extends MutableLineBorder {
 
-    private int left;
+    private final int left;
-    private int top;
+    private final int top;
-    private int bottom;
+    private final int bottom;
-    private int right;
+    private final int right;
 
     public WeakLineBorder(final int top, final int left, final int bottom, final int right) {
         super(top, left, bottom, right, null);

core/src/main/java/com/github/weisj/darklaf/components/tabframe/JTabFrame.java

@@ -539,7 +539,8 @@ public class JTabFrame extends JComponent {
             getPopupComponentAt(a).doLayout();
             getPopupComponentAt(a).requestFocus();
         }
-        firePropertyChange(TabFramePopup.KEY_VISIBLE_TAB, new TabFramePosition(a, oldIndex), new TabFramePosition(a, index));
+        firePropertyChange(TabFramePopup.KEY_VISIBLE_TAB, new TabFramePosition(a, oldIndex),
+                           new TabFramePosition(a, index));
     }
 
     /**

core/src/main/java/com/github/weisj/darklaf/components/tabframe/PanelPopup.java

@@ -122,7 +122,7 @@ public class PanelPopup extends JPanel implements TabFramePopup {
     @Override
     public void close() {
         if (parent != null && getAlignment() != null && getIndex() >= 0
-                && parent.isSelected(getAlignment(), getIndex())) {
+            && parent.isSelected(getAlignment(), getIndex())) {
             boolean oldOpen = isOpen();
             parent.closeTab(getAlignment(), getIndex());
             open = false;
@@ -166,7 +166,7 @@ public class PanelPopup extends JPanel implements TabFramePopup {
     @Override
     public void open() {
         if (parent != null && getAlignment() != null && getIndex() >= 0
-                && !parent.isSelected(getAlignment(), getIndex())) {
+            && !parent.isSelected(getAlignment(), getIndex())) {
             boolean oldOpen = isOpen();
             parent.openTab(getAlignment(), getIndex());
             open = true;

core/src/main/java/com/github/weisj/darklaf/components/tabframe/TabFrameContentPane.java

@@ -189,59 +189,59 @@ public class TabFrameContentPane extends JPanel implements TabFrameContent {
         switch (a) {
             case NORTH:
                 changeStatus(
-                        enabled, Alignment.NORTH_EAST,
+                    enabled, Alignment.NORTH_EAST,
-                        topSplit, topSplitter,
+                    topSplit, topSplitter,
-                        new LayoutProportions(VERTICAL_PROP_TOP, 1.0, 0.0, 0.0),
+                    new LayoutProportions(VERTICAL_PROP_TOP, 1.0, 0.0, 0.0),
-                        new LayoutWeights(0.0, 0.0, 0.0, 1.0));
+                    new LayoutWeights(0.0, 0.0, 0.0, 1.0));
                 break;
             case NORTH_EAST:
                 changeStatus(
-                        enabled, Alignment.NORTH,
+                    enabled, Alignment.NORTH,
-                        topSplit, topSplitter,
+                    topSplit, topSplitter,
-                        new LayoutProportions(VERTICAL_PROP_TOP, 0.0, 0.0, 1.0),
+                    new LayoutProportions(VERTICAL_PROP_TOP, 0.0, 0.0, 1.0),
-                        new LayoutWeights(0.0, 0.0, 1.0, 0.0));
+                    new LayoutWeights(0.0, 0.0, 1.0, 0.0));
                 break;
             case EAST:
                 changeStatus(
-                        enabled, Alignment.SOUTH_EAST,
+                    enabled, Alignment.SOUTH_EAST,
-                        rightSplit, rightSplitter,
+                    rightSplit, rightSplitter,
-                        new LayoutProportions(HORIZONTAL_PROP_RIGHT, 1.0, 1.0, 0.0),
+                    new LayoutProportions(HORIZONTAL_PROP_RIGHT, 1.0, 1.0, 0.0),
-                        new LayoutWeights(1.0, 1.0, 0.0, 1.0));
+                    new LayoutWeights(1.0, 1.0, 0.0, 1.0));
                 break;
             case SOUTH_EAST:
                 changeStatus(
-                        enabled, Alignment.EAST,
+                    enabled, Alignment.EAST,
-                        rightSplit, rightSplitter,
+                    rightSplit, rightSplitter,
-                        new LayoutProportions(HORIZONTAL_PROP_RIGHT, 0.0, 1.0, 1.0),
+                    new LayoutProportions(HORIZONTAL_PROP_RIGHT, 0.0, 1.0, 1.0),
-                        new LayoutWeights(1.0, 1.0, 1.0, 0.0));
+                    new LayoutWeights(1.0, 1.0, 1.0, 0.0));
                 break;
             case NORTH_WEST:
                 changeStatus(
-                        enabled, Alignment.WEST,
+                    enabled, Alignment.WEST,
-                        leftSplit, leftSplitter,
+                    leftSplit, leftSplitter,
-                        new LayoutProportions(VERTICAL_PROP_TOP, 1.0, 0.0, 0.0),
+                    new LayoutProportions(VERTICAL_PROP_TOP, 1.0, 0.0, 0.0),
-                        new LayoutWeights(0.0, 0.0, 0.0, 1.0));
+                    new LayoutWeights(0.0, 0.0, 0.0, 1.0));
                 break;
             case WEST:
                 changeStatus(
-                        enabled, Alignment.NORTH_WEST,
+                    enabled, Alignment.NORTH_WEST,
-                        leftSplit, leftSplitter,
+                    leftSplit, leftSplitter,
-                        new LayoutProportions(VERTICAL_PROP_TOP, 0.0, 0.0, 1.0),
+                    new LayoutProportions(VERTICAL_PROP_TOP, 0.0, 0.0, 1.0),
-                        new LayoutWeights(0.0, 0.0, 1.0, 0.0));
+                    new LayoutWeights(0.0, 0.0, 1.0, 0.0));
                 break;
             case SOUTH_WEST:
                 changeStatus(
-                        enabled, Alignment.SOUTH,
+                    enabled, Alignment.SOUTH,
-                        bottomSplit, bottomSplitter,
+                    bottomSplit, bottomSplitter,
-                        new LayoutProportions(VERTICAL_PROP_BOTTOM, 1.0, 1.0, 0.0),
+                    new LayoutProportions(VERTICAL_PROP_BOTTOM, 1.0, 1.0, 0.0),
-                        new LayoutWeights(1.0, 1.0, 0.0, 1.0));
+                    new LayoutWeights(1.0, 1.0, 0.0, 1.0));
                 break;
             case SOUTH:
                 changeStatus(
-                        enabled, Alignment.SOUTH_WEST,
+                    enabled, Alignment.SOUTH_WEST,
-                        bottomSplit, bottomSplitter,
+                    bottomSplit, bottomSplitter,
-                        new LayoutProportions(VERTICAL_PROP_BOTTOM, 0.0, 1.0, 1.0),
+                    new LayoutProportions(VERTICAL_PROP_BOTTOM, 0.0, 1.0, 1.0),
-                        new LayoutWeights(1.0, 1.0, 1.0, 0.0));
+                    new LayoutWeights(1.0, 1.0, 1.0, 0.0));
                 break;
             case CENTER:
                 break;

core/src/main/java/com/github/weisj/darklaf/components/tabframe/TabFramePopup.java

@@ -66,7 +66,7 @@ public interface TabFramePopup {
      */
     default void close() {
         if (getTabFrame() != null && getAlignment() != null && getIndex() >= 0
-                && getTabFrame().isSelected(getAlignment(), getIndex())) {
+            && getTabFrame().isSelected(getAlignment(), getIndex())) {
             getTabFrame().closeTab(getAlignment(), getIndex());
         }
     }
@@ -119,7 +119,7 @@ public interface TabFramePopup {
      */
     default void open() {
         if (getTabFrame() != null && getAlignment() != null && getIndex() >= 0
-                && !getTabFrame().isSelected(getAlignment(), getIndex())) {
+            && !getTabFrame().isSelected(getAlignment(), getIndex())) {
             getTabFrame().closeTab(getAlignment(), getIndex());
         }
     }

core/src/main/java/com/github/weisj/darklaf/components/tabframe/ToggleSplitPane.java

@@ -108,9 +108,9 @@ public class ToggleSplitPane extends JSplitPane {
 
     public void forceSetDividerLocation(final double proportionalLocation) {
         if (proportionalLocation < 0.0 ||
-                proportionalLocation > 1.0) {
+            proportionalLocation > 1.0) {
             throw new IllegalArgumentException("proportional location must "
-                                                       + "be between 0.0 and 1.0.");
+                                               + "be between 0.0 and 1.0.");
         }
         if (getOrientation() == VERTICAL_SPLIT) {
             super.setDividerLocation((int) ((double) (getHeight()) * proportionalLocation));

core/src/main/java/com/github/weisj/darklaf/components/text/LineHighlighter.java

@@ -64,7 +64,9 @@ public class LineHighlighter implements Highlighter.HighlightPainter, ChangeList
             g.setColor(color);
             g.fillRect(0, r.y, c.getWidth(), r.height);
 
-            if (lastView == null) { lastView = r; }
+            if (lastView == null) {
+                lastView = r;
+            }
         } catch (BadLocationException ble) {
             ble.printStackTrace();
         }
@@ -99,7 +101,8 @@ public class LineHighlighter implements Highlighter.HighlightPainter, ChangeList
                     component.repaint(0, lastView.y, component.getWidth(), lastView.height);
                     lastView = currentView;
                 }
-            } catch (BadLocationException ignored) {}
+            } catch (BadLocationException ignored) {
+            }
         });
     }
 }

core/src/main/java/com/github/weisj/darklaf/components/text/NumberingPane.java

@@ -36,8 +36,8 @@ public class NumberingPane extends JComponent {
     public static final String KEY_ICONS = "icons";
     public static final String KEY_MIN_ICON_WIDTH = "minimumIconWidth";
     private JTextComponent textComponent;
-    private Map<Position, Icon> iconMap;
+    private final Map<Position, Icon> iconMap;
-    private Map<Position, List<IconListener>> listenerMap;
+    private final Map<Position, List<IconListener>> listenerMap;
     private int width;
 
     public NumberingPane() {
@@ -83,7 +83,8 @@ public class NumberingPane extends JComponent {
         return addIconAtLine(lineIndex, icon, true);
     }
 
-    public Position addIconAtLine(final int lineIndex, final Icon icon, final boolean atTextStart) throws BadLocationException {
+    public Position addIconAtLine(final int lineIndex, final Icon icon, final boolean atTextStart)
+        throws BadLocationException {
         int offset = textComponent.getDocument().getDefaultRootElement().getElement(lineIndex).getStartOffset();
         if (atTextStart) {
             Document doc = textComponent.getDocument();

core/src/main/java/com/github/weisj/darklaf/components/text/SearchTextFieldWithHistory.java

@@ -33,7 +33,7 @@ import java.util.List;
  */
 public class SearchTextFieldWithHistory extends SearchTextField {
 
-    protected TextFieldHistoryPopup history;
+    protected final TextFieldHistoryPopup history;
 
     /**
      * Constructs a new <code>TextField</code>.  A default model is created, the initial string is <code>null</code>,

core/src/main/java/com/github/weisj/darklaf/components/text/TextFieldHistoryPopup.java

@@ -29,14 +29,8 @@ import com.github.weisj.darklaf.util.StringUtil;
 
 import javax.swing.*;
 import java.awt.*;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.LinkedList;
 import java.util.List;
-import java.util.Map;
+import java.util.*;
-import java.util.Set;
 
 /**
  * @author Jannis Weis

core/src/main/java/com/github/weisj/darklaf/components/tooltip/ToolTipContext.java

@@ -224,9 +224,9 @@ public class ToolTipContext {
      *
      * <p>Default will be {@link AlignmentStrategy#COMPONENT_BOTH}.
      *
-     * @see AlignmentStrategy
      * @param alignmentStrategy the alignment strategy.
      * @return this
+     * @see AlignmentStrategy
      */
     public ToolTipContext setAlignmentStrategy(final AlignmentStrategy alignmentStrategy) {
         this.alignmentStrategy = alignmentStrategy;
@@ -282,7 +282,8 @@ public class ToolTipContext {
      * @param alignmentStrategy {@link #setAlignmentStrategy(AlignmentStrategy)}
      */
 
-    public ToolTipContext(final JComponent target, final Alignment alignment, final AlignmentStrategy alignmentStrategy) {
+    public ToolTipContext(final JComponent target, final Alignment alignment,
+                          final AlignmentStrategy alignmentStrategy) {
         this(target, alignment, null, alignmentStrategy, true, null);
     }
 
@@ -303,7 +304,7 @@ public class ToolTipContext {
     /**
      * Create a new tooltip context to ease the creation of custom tooltips.
      *
-     * @param target                 the component which the tooltip belongs to.
+     * @param target            the component which the tooltip belongs to.
      * @param alignment         {@link #setAlignment(Alignment)}
      * @param alignmentStrategy {@link #setAlignmentStrategy(AlignmentStrategy)}
      * @param alignInside       {@link #setAlignInside(boolean)}
@@ -392,9 +393,9 @@ public class ToolTipContext {
     }
 
     /**
-     * @see #setInsideArea(Area)
      * @param insideRect the rectangle to check.
      * @return this
+     * @see #setInsideArea(Area)
      */
     public ToolTipContext setInsideArea(final Rectangle insideRect) {
         this.hotSpotArea = new Area(insideRect);
@@ -418,8 +419,8 @@ public class ToolTipContext {
     }
 
     /**
-     * Sets whether the border should be ignored when aligning outside. If true the tooltip is aligned w.r.t. to
+     * Sets whether the border should be ignored when aligning outside. If true the tooltip is aligned w.r.t. to the
-     * the content rect and not the component bounds.
+     * content rect and not the component bounds.
      *
      * @param ignoreBorder true if border insets should be ignored.
      * @return this.

core/src/main/java/com/github/weisj/darklaf/components/tristate/TristateCheckBoxMenuItem.java

@@ -60,8 +60,7 @@ public class TristateCheckBoxMenuItem extends JCheckBoxMenuItem {
     }
 
     /**
-     * Creates a menu item whose properties are taken from the
+     * Creates a menu item whose properties are taken from the Action supplied.
-     * Action supplied.
      *
      * @param a the action of the {@code JCheckBoxMenuItem}
      * @since 1.3

core/src/main/java/com/github/weisj/darklaf/platform/Decorations.java

@@ -60,7 +60,8 @@ public final class Decorations {
         }
     }
 
-    public static CustomTitlePane createTitlePane(final JRootPane rootPane, final int decorationStyle, final Window window) {
+    public static CustomTitlePane createTitlePane(final JRootPane rootPane, final int decorationStyle,
+                                                  final Window window) {
         return decorationsProvider.createTitlePane(rootPane, decorationStyle, window);
     }
 
@@ -74,8 +75,8 @@ public final class Decorations {
 
     public static boolean isCustomDecorationSupported() {
         return decorationsProvider.isCustomDecorationSupported()
-            && LafManager.isDecorationsEnabled()
+               && LafManager.isDecorationsEnabled()
-            && LafManager.getTheme().useCustomDecorations();
+               && LafManager.getTheme().useCustomDecorations();
     }
 
     public static void initialize() {

core/src/main/java/com/github/weisj/darklaf/theme/Theme.java

@@ -48,12 +48,12 @@ import java.util.logging.Logger;
 public abstract class Theme {
     private static final Logger LOGGER = Logger.getLogger(Theme.class.getName());
     private static final String[] UI_PROPERTIES = new String[]{
-            "borders", "button", "checkBox", "colorChooser", "comboBox", "fileChooser", "tristate",
+        "borders", "button", "checkBox", "colorChooser", "comboBox", "fileChooser", "tristate",
-            "internalFrame", "label", "list", "menu", "menuBar", "menuItem", "numberingPane", "optionPane", "panel",
+        "internalFrame", "label", "list", "menu", "menuBar", "menuItem", "numberingPane", "optionPane", "panel",
-            "popupMenu", "progressBar", "radioButton", "rootPane", "scrollBar", "scrollPane", "separator",
+        "popupMenu", "progressBar", "radioButton", "rootPane", "scrollBar", "scrollPane", "separator",
-            "slider", "spinner", "splitPane", "statusBar", "tabbedPane", "tabFrame", "table", "taskPane", "text",
+        "slider", "spinner", "splitPane", "statusBar", "tabbedPane", "tabFrame", "table", "taskPane", "text",
-            "toggleButton", "toolBar", "toolTip", "tree",
+        "toggleButton", "toolBar", "toolTip", "tree",
-    };
+        };
     private static final String[] ICON_PROPERTIES = new String[]{
         "control", "dialog", "files", "frame", "indicator", "menu", "misc", "navigation"
     };
@@ -74,9 +74,9 @@ public abstract class Theme {
     /**
      * Load the theme defaults.
      * <p>
-     * Note: When overwriting a theme you also have overwrite {@link #getLoaderClass()}
+     * Note: When overwriting a theme you also have overwrite {@link #getLoaderClass()} to return the class of the theme
-     * to return the class of the theme you are overwriting. In this case you should use
+     * you are overwriting. In this case you should use {@link #loadWithClass(String, Class)} instead of {@link
-     * {@link #loadWithClass(String, Class)} instead of {@link #load(String)}.
+     * #load(String)}.
      *
      * @param properties      the properties to load the values into.
      * @param currentDefaults the current ui defaults.
@@ -89,9 +89,9 @@ public abstract class Theme {
     /**
      * Load the global values.
      * <p>
-     * Note: When overwriting a theme you also have overwrite {@link #getLoaderClass()}
+     * Note: When overwriting a theme you also have overwrite {@link #getLoaderClass()} to return the class of the theme
-     * to return the class of the theme you are overwriting. In this case you should use
+     * you are overwriting. In this case you should use {@link #loadWithClass(String, Class)} instead of {@link
-     * {@link #loadWithClass(String, Class)} instead of {@link #load(String)}.
+     * #load(String)}.
      *
      * @param properties      the properties to load the values into.
      * @param currentDefaults the current ui defaults.
@@ -104,9 +104,9 @@ public abstract class Theme {
     /**
      * Load the icon defaults.
      * <p>
-     * Note: When overwriting a theme you also have overwrite {@link #getLoaderClass()}
+     * Note: When overwriting a theme you also have overwrite {@link #getLoaderClass()} to return the class of the theme
-     * to return the class of the theme you are overwriting. In this case you should use
+     * you are overwriting. In this case you should use {@link #loadWithClass(String, Class)} instead of {@link
-     * {@link #loadWithClass(String, Class)} instead of {@link #load(String)}.
+     * #load(String)}.
      *
      * @param properties      the properties to load the value into.
      * @param currentDefaults the current ui defaults.
@@ -122,9 +122,9 @@ public abstract class Theme {
     /**
      * Load the general properties file for the icon themes.
      * <p>
-     * Note: When overwriting a theme you also have overwrite {@link #getLoaderClass()}
+     * Note: When overwriting a theme you also have overwrite {@link #getLoaderClass()} to return the class of the theme
-     * to return the class of the theme you are overwriting. In this case you should use
+     * you are overwriting. In this case you should use {@link #loadWithClass(String, Class)} instead of {@link
-     * {@link #loadWithClass(String, Class)} instead of {@link #load(String)}.
+     * #load(String)}.
      *
      * @param properties      the properties to load the value into.
      * @param currentDefaults the current ui defaults.
@@ -149,8 +149,8 @@ public abstract class Theme {
     /**
      * Load the platform defaults.
      * <p>
-     * Note: When overwriting a theme you should use {@link #loadWithClass(String, Class)}
+     * Note: When overwriting a theme you should use {@link #loadWithClass(String, Class)} instead of {@link
-     * instead of {@link #load(String)}.
+     * #load(String)}.
      *
      * @param properties      the properties to load the values into.
      * @param currentDefaults the current ui defaults.
@@ -167,8 +167,8 @@ public abstract class Theme {
     /**
      * Load the ui defaults.
      * <p>
-     * Note: When overwriting a theme you should use {@link #loadWithClass(String, Class)}
+     * Note: When overwriting a theme you should use {@link #loadWithClass(String, Class)} instead of {@link
-     * instead of {@link #load(String)}.
+     * #load(String)}.
      *
      * @param properties      the properties to load the values into.
      * @param currentDefaults the current ui defaults.
@@ -191,8 +191,8 @@ public abstract class Theme {
      * Load custom properties that are located under {@link #getResourcePath()}, with the name {@link
      * #getName()}_{propertySuffix}.properties
      * <p>
-     * Note: When overwriting a theme you should use {@link #loadWithClass(String, Class)}
+     * Note: When overwriting a theme you should use {@link #loadWithClass(String, Class)} instead of {@link
-     * instead of {@link #load(String)}.
+     * #load(String)}.
      *
      * @param propertySuffix  the property suffix.
      * @param properties      the properties to load into.
@@ -207,8 +207,7 @@ public abstract class Theme {
     /**
      * Load a .properties file using {@link #getLoaderClass()}} to resolve the file path.
      * <p>
-     * Note: When overwriting a theme you should use {@link #loadWithClass(String, Class)}
+     * Note: When overwriting a theme you should use {@link #loadWithClass(String, Class)} instead.
-     * instead.
      *
      * @param name the properties file to load.
      * @return the properties.
@@ -251,9 +250,8 @@ public abstract class Theme {
     public abstract String getName();
 
     /**
-     * The class used to determine the runtime location of resources.
+     * The class used to determine the runtime location of resources. It is advised to explicitly return the class
-     * It is advised to explicitly return the class instead of using {@link #getClass()} to protect
+     * instead of using {@link #getClass()} to protect against extending the theme.
-     * against extending the theme.
      *
      * @return the loader class.
      */

core/src/main/java/com/github/weisj/darklaf/ui/BasicTransferable.java

@@ -28,7 +28,10 @@ import javax.swing.plaf.UIResource;
 import java.awt.datatransfer.DataFlavor;
 import java.awt.datatransfer.Transferable;
 import java.awt.datatransfer.UnsupportedFlavorException;
-import java.io.*;
+import java.io.InputStream;
+import java.io.Reader;
+import java.io.StringBufferInputStream;
+import java.io.StringReader;
 import java.util.logging.Logger;
 
 /**
@@ -77,7 +80,7 @@ public class BasicTransferable implements Transferable, UIResource {
      * Returns an array of DataFlavor objects indicating the flavors the data can be provided in.  The array should be
      * ordered according to preference for providing the data (from most richly descriptive to least descriptive).
      *
-     * @return an array of data flavors in which this data can be transferred
+     * @return an array of data flavors in which this data can be transferred.
      */
     public DataFlavor[] getTransferDataFlavors() {
         DataFlavor[] richerFlavors = getRicherFlavors();
@@ -110,15 +113,15 @@ public class BasicTransferable implements Transferable, UIResource {
     }
 
     /**
-     * Returns whether or not the specified data flavor is supported for this object.
+     * Returns whether the specified data flavor is supported for this object.
      *
      * @param flavor the requested flavor for the data
-     * @return boolean indicating whether or not the data flavor is supported
+     * @return boolean indicating whether the data flavor is supported.
      */
     public boolean isDataFlavorSupported(final DataFlavor flavor) {
         DataFlavor[] flavors = getTransferDataFlavors();
-        for (int i = 0; i < flavors.length; i++) {
+        for (DataFlavor dataFlavor : flavors) {
-            if (flavors[i].equals(flavor)) {
+            if (dataFlavor.equals(flavor)) {
                 return true;
             }
         }
@@ -130,12 +133,10 @@ public class BasicTransferable implements Transferable, UIResource {
      * the representation class of the flavor.
      *
      * @param flavor the requested flavor for the data
-     * @throws IOException                if the data is no longer available in the requested flavor.
      * @throws UnsupportedFlavorException if the requested data flavor is not supported.
      * @see DataFlavor#getRepresentationClass
      */
-    public Object getTransferData(final DataFlavor flavor) throws UnsupportedFlavorException, IOException {
+    public Object getTransferData(final DataFlavor flavor) throws UnsupportedFlavorException {
-        DataFlavor[] richerFlavors = getRicherFlavors();
         if (isRicherFlavor(flavor)) {
             return getRicherData(flavor);
         } else if (isHTMLFlavor(flavor)) {
@@ -192,7 +193,7 @@ public class BasicTransferable implements Transferable, UIResource {
         return null;
     }
 
-    protected Object getRicherData(final DataFlavor flavor) throws UnsupportedFlavorException {
+    protected Object getRicherData(final DataFlavor flavor) {
         return null;
     }
 
@@ -206,8 +207,8 @@ public class BasicTransferable implements Transferable, UIResource {
      */
     protected boolean isHTMLFlavor(final DataFlavor flavor) {
         DataFlavor[] flavors = htmlFlavors;
-        for (int i = 0; i < flavors.length; i++) {
+        for (DataFlavor dataFlavor : flavors) {
-            if (flavors[i].equals(flavor)) {
+            if (dataFlavor.equals(flavor)) {
                 return true;
             }
         }
@@ -243,8 +244,8 @@ public class BasicTransferable implements Transferable, UIResource {
      */
     protected boolean isPlainFlavor(final DataFlavor flavor) {
         DataFlavor[] flavors = plainFlavors;
-        for (int i = 0; i < flavors.length; i++) {
+        for (DataFlavor dataFlavor : flavors) {
-            if (flavors[i].equals(flavor)) {
+            if (dataFlavor.equals(flavor)) {
                 return true;
             }
         }
@@ -280,8 +281,8 @@ public class BasicTransferable implements Transferable, UIResource {
      */
     protected boolean isStringFlavor(final DataFlavor flavor) {
         DataFlavor[] flavors = stringFlavors;
-        for (int i = 0; i < flavors.length; i++) {
+        for (DataFlavor dataFlavor : flavors) {
-            if (flavors[i].equals(flavor)) {
+            if (dataFlavor.equals(flavor)) {
                 return true;
             }
         }

core/src/main/java/com/github/weisj/darklaf/ui/DarkPopupFactory.java

@@ -40,7 +40,7 @@ public class DarkPopupFactory extends PopupFactory {
         boolean isMediumWeight = popup.getClass().getSimpleName().endsWith("MediumWeightPopup");
         boolean isLightWeight = popup.getClass().getSimpleName().endsWith("LightWeightPopup");
         boolean isBalloonTooltip = contents instanceof JToolTip
-            && ((JToolTip) contents).getBorder() instanceof DarkTooltipBorder;
+                                   && ((JToolTip) contents).getBorder() instanceof DarkTooltipBorder;
         boolean isPopupMenu = contents instanceof JPopupMenu;
         if (isMediumWeight || isLightWeight) {
             if (isBalloonTooltip) {

core/src/main/java/com/github/weisj/darklaf/ui/DragRecognitionSupport.java

@@ -37,7 +37,8 @@ import java.awt.event.MouseEvent;
  * press followed by movement by <code>DragSource.getDragThreshold()</code> pixels. An instance of this class is
  * maintained per AppContext, and the public static methods call into the appropriate instance.
  *
- * <p>This is a c and p of core (package private) needed for BasicXListUI. It differs from core in that references to sun
+ * <p>This is a c and p of core (package private) needed for BasicXListUI. It differs from core in that references to
+ * sun
  * packages have been replaced.
  * <ul>
  * <li> a static method of SunDragSourceContextPeer has been copied into SwingXUtilities
@@ -71,7 +72,7 @@ public class DragRecognitionSupport {
         component = (JComponent) me.getSource();
 
         if (mapDragOperationFromModifiers(me, component.getTransferHandler())
-                != TransferHandler.NONE) {
+            != TransferHandler.NONE) {
 
             motionThreshold = DragSource.getDragThreshold();
             dndArmedEvent = me;
@@ -96,7 +97,7 @@ public class DragRecognitionSupport {
 //        }
 
         DragRecognitionSupport support = (DragRecognitionSupport)
-                UIManager.get("sharedInstance.dragRecognitionSupport");
+            UIManager.get("sharedInstance.dragRecognitionSupport");
         if (support == null) {
             support = new DragRecognitionSupport();
             UIManager.put("sharedInstance.dragRecognitionSupport", support);
@@ -112,8 +113,8 @@ public class DragRecognitionSupport {
         }
         // PENDING JW: c'p from SunDragSourceContextPeer
         return SwingXUtilities.
-                                      convertModifiersToDropAction(me.getModifiersEx(),
+                                  convertModifiersToDropAction(me.getModifiersEx(),
-                                                                   th.getSourceActions(component));
+                                                               th.getSourceActions(component));
     }
 
     private void clearState() {
@@ -125,12 +126,12 @@ public class DragRecognitionSupport {
      * If a dnd recognition has been going on, return the MouseEvent that started the recognition. Otherwise, return
      * null.
      *
-     * @param  me the MouseEvent.
+     * @param me the MouseEvent.
      * @return true if mouse has been released.
      */
     public static MouseEvent mouseReleased(final MouseEvent me) {
         return getDragRecognitionSupport().
-                                                  mouseReleasedImpl(me);
+                                              mouseReleasedImpl(me);
     }
 
     /**

core/src/main/java/com/github/weisj/darklaf/ui/button/ButtonConstants.java

@@ -48,17 +48,17 @@ public interface ButtonConstants {
 
     static boolean chooseAlternativeArc(final Component c) {
         return c instanceof AbstractButton
-            && Boolean.TRUE.equals(((AbstractButton) c).getClientProperty(KEY_ALT_ARC));
+               && Boolean.TRUE.equals(((AbstractButton) c).getClientProperty(KEY_ALT_ARC));
     }
 
     static boolean isLabelButton(final Component c) {
         return c instanceof AbstractButton
-            && VARIANT_ONLY_LABEL.equals(((AbstractButton) c).getClientProperty(KEY_VARIANT));
+               && VARIANT_ONLY_LABEL.equals(((AbstractButton) c).getClientProperty(KEY_VARIANT));
     }
 
     static boolean isNoArc(final Component c) {
         return c instanceof AbstractButton
-            && Boolean.TRUE.equals(((AbstractButton) c).getClientProperty(KEY_NO_ARC));
+               && Boolean.TRUE.equals(((AbstractButton) c).getClientProperty(KEY_NO_ARC));
     }
 
     static boolean isSquare(final Component c) {
@@ -84,7 +84,7 @@ public interface ButtonConstants {
 
     static boolean isFullShadow(final Component c) {
         return c instanceof AbstractButton
-            && VARIANT_FULL_SHADOW.equals(((AbstractButton) c).getClientProperty(KEY_VARIANT));
+               && VARIANT_FULL_SHADOW.equals(((AbstractButton) c).getClientProperty(KEY_VARIANT));
     }
 
     static boolean doConvertToShadow(final AbstractButton b) {
@@ -93,8 +93,8 @@ public interface ButtonConstants {
 
     static boolean convertIconButtonToShadow(final AbstractButton b) {
         return !(b instanceof UIResource)
-            && UIManager.getBoolean("Button.convertIconOnlyToShadow")
+               && UIManager.getBoolean("Button.convertIconOnlyToShadow")
-            && !Boolean.TRUE.equals(b.getClientProperty(KEY_NO_SHADOW_OVERWRITE));
+               && !Boolean.TRUE.equals(b.getClientProperty(KEY_NO_SHADOW_OVERWRITE));
     }
 
     static boolean isIconOnly(final AbstractButton b) {

core/src/main/java/com/github/weisj/darklaf/ui/button/DarkButtonBorder.java

@@ -41,19 +41,19 @@ import java.awt.geom.RoundRectangle2D;
  */
 public class DarkButtonBorder implements Border, UIResource {
 
-    private Color shadowColor;
+    private final Color shadowColor;
-    private Color focusBorderColor;
+    private final Color focusBorderColor;
-    private Color defaultBorderColor;
+    private final Color defaultBorderColor;
-    private Color borderColor;
+    private final Color borderColor;
-    private Color inactiveBorderColor;
+    private final Color inactiveBorderColor;
 
-    private int arc;
+    private final int arc;
-    private int focusArc;
+    private final int focusArc;
-    private int squareFocusArc;
+    private final int squareFocusArc;
-    private int squareArc;
+    private final int squareArc;
-    private int minimumArc;
+    private final int minimumArc;
-    private int borderSize;
+    private final int borderSize;
-    private int shadowSize;
+    private final int shadowSize;
     private Insets insets;
     private Insets thinInsets;
     private Insets squareInsets;
@@ -94,13 +94,13 @@ public class DarkButtonBorder implements Border, UIResource {
 
     public static boolean showDropShadow(final AlignmentExt a) {
         return a == null
-            || a == AlignmentExt.SOUTH
+               || a == AlignmentExt.SOUTH
-            || a == AlignmentExt.SOUTH_EAST
+               || a == AlignmentExt.SOUTH_EAST
-            || a == AlignmentExt.SOUTH_WEST
+               || a == AlignmentExt.SOUTH_WEST
-            || a == AlignmentExt.LEFT
+               || a == AlignmentExt.LEFT
-            || a == AlignmentExt.RIGHT
+               || a == AlignmentExt.RIGHT
-            || a == AlignmentExt.BOTTOM
+               || a == AlignmentExt.BOTTOM
-            || a == AlignmentExt.MIDDLE_HORIZONTAL;
+               || a == AlignmentExt.MIDDLE_HORIZONTAL;
     }
 
     protected int getArc(final Component c) {
@@ -275,7 +275,7 @@ public class DarkButtonBorder implements Border, UIResource {
         Insets pad = ButtonConstants.isThin(c) ? square ? squareThinInsets
                                                         : thinInsets
                                                : square ? squareInsets
-                                                     : insets;
+                                                        : insets;
         return maskInsets(new InsetsUIResource(pad.top, pad.left, pad.bottom, pad.right), c, shadow);
     }
 

core/src/main/java/com/github/weisj/darklaf/ui/button/DarkButtonUI.java

@@ -317,7 +317,7 @@ public class DarkButtonUI extends BasicButtonUI implements ButtonConstants {
         boolean defaultButton = ButtonConstants.isDefaultButton(c);
         AbstractButton b = (AbstractButton) c;
         boolean rollOver = (b.isRolloverEnabled() || ButtonConstants.doConvertToShadow(b))
-            && (((JButton) c).getModel().isRollover());
+                           && (((JButton) c).getModel().isRollover());
         boolean clicked = b.getModel().isArmed();
         if (c.isEnabled()) {
             if (defaultButton) {

core/src/main/java/com/github/weisj/darklaf/ui/cell/DarkCellRendererToggleButton.java

@@ -25,9 +25,9 @@ package com.github.weisj.darklaf.ui.cell;
 
 import com.github.weisj.darklaf.components.SelectableTreeNode;
 import com.github.weisj.darklaf.decorators.CellRenderer;
-import com.github.weisj.darklaf.ui.togglebutton.DarkToggleButtonUI;
 import com.github.weisj.darklaf.ui.table.DarkTableCellFocusBorder;
 import com.github.weisj.darklaf.ui.table.DarkTableUI;
+import com.github.weisj.darklaf.ui.togglebutton.DarkToggleButtonUI;
 import com.github.weisj.darklaf.ui.tree.DarkTreeCellRenderer;
 import com.github.weisj.darklaf.util.DarkUIUtil;
 
@@ -42,7 +42,7 @@ import java.awt.*;
  * @author Jannis Weis
  */
 public class DarkCellRendererToggleButton<T extends JToggleButton & CellEditorToggleButton>
-        implements TableCellRenderer, TreeCellRenderer, SwingConstants {
+    implements TableCellRenderer, TreeCellRenderer, SwingConstants {
 
     private final T toggleButton;
 
@@ -62,13 +62,13 @@ public class DarkCellRendererToggleButton<T extends JToggleButton & CellEditorTo
         toggleButton.setHasFocus(focus);
 
         boolean isLeadSelectionCell = DarkUIUtil.hasFocus(table)
-            && focus && !DarkTableCellFocusBorder.isRowFocusBorder(table);
+                                      && focus && !DarkTableCellFocusBorder.isRowFocusBorder(table);
         boolean paintSelected = isSelected && !isLeadSelectionCell && !table.isEditing();
 
         CellUtil.setupForeground(toggleButton, table, paintSelected,
-                                 "Table.selectionForeground","Table.selectionForegroundInactive");
+                                 "Table.selectionForeground", "Table.selectionForegroundInactive");
-        CellUtil.setupBackground(toggleButton, table, paintSelected, row,DarkTableUI.KEY_ALTERNATE_ROW_COLOR,
+        CellUtil.setupBackground(toggleButton, table, paintSelected, row, DarkTableUI.KEY_ALTERNATE_ROW_COLOR,
-                                 "Table.background","Table.alternateRowBackground");
+                                 "Table.background", "Table.alternateRowBackground");
         return toggleButton;
     }
 
@@ -89,7 +89,7 @@ public class DarkCellRendererToggleButton<T extends JToggleButton & CellEditorTo
         toggleButton.setHasFocus(false);
 
         CellUtil.setupForeground(toggleButton, tree, selected,
-                                 "Tree.selectionForeground","Tree.selectionForegroundInactive");
+                                 "Tree.selectionForeground", "Tree.selectionForegroundInactive");
 
         return toggleButton;
     }

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/ColorPreviewComponent.java

@@ -30,7 +30,7 @@ import java.awt.*;
  * @author Jannis Weis
  */
 final class ColorPreviewComponent extends JComponent {
-    protected Color borderColor;
+    protected final Color borderColor;
     private Color myColor;
 
     ColorPreviewComponent() {

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/ColorValueFormatter.java

@@ -43,7 +43,7 @@ import static java.util.Locale.ENGLISH;
  * @author Jannis Weis
  */
 public final class ColorValueFormatter extends JFormattedTextField.AbstractFormatter implements FocusListener,
-        ActionListener {
+                                                                                                ActionListener {
 
     private final int fieldIndex;
     private final int radix;
@@ -68,7 +68,7 @@ public final class ColorValueFormatter extends JFormattedTextField.AbstractForma
         public void insertString(final FilterBypass fb, final int offset,
                                  final String text, final AttributeSet set) throws BadLocationException {
             if (isValid(fb.getDocument().getLength() + text.length())
-                    && isValid(text)) {
+                && isValid(text)) {
                 StringBuilder newText = new StringBuilder(fb.getDocument().getText(0, fb.getDocument().getLength()));
                 newText.insert(offset, text);
                 if (hex || isValidValue(newText.toString())) {

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/ColorWheel.java

@@ -162,7 +162,7 @@ public class ColorWheel extends JComponent {
 
         if (myImage == null) {
             myImage = createImage(new ColorWheelImageProducer(
-                    _size - BORDER_SIZE * 2, _size - BORDER_SIZE * 2, myBrightness));
+                _size - BORDER_SIZE * 2, _size - BORDER_SIZE * 2, myBrightness));
             myWheel = new Rectangle(BORDER_SIZE, BORDER_SIZE, _size - BORDER_SIZE * 2,
                                     _size - BORDER_SIZE * 2);
         }

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/ColorWheelImageProducer.java

@@ -36,7 +36,7 @@ public class ColorWheelImageProducer extends MemoryImageSource {
     private final int[] myPixels;
     private final int myWidth;
     private final int myHeight;
-    private float myBrightness;
+    private final float myBrightness;
 
     private float[] myHues;
     private float[] mySat;
@@ -76,8 +76,8 @@ public class ColorWheelImageProducer extends MemoryImageSource {
 
                 int index = x + y * myWidth;
                 mySat[index] = (float) Math.sqrt(squarekx + ky
-                        * ky)
+                                                            * ky)
-                        / radius;
+                               / radius;
                 if (mySat[index] <= 1f) {
                     myAlphas[index] = 0xff000000;
                 } else {

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/DarkColorChooserPanel.java

@@ -49,7 +49,7 @@ import java.awt.event.KeyEvent;
 public class DarkColorChooserPanel extends AbstractColorChooserPanel implements ColorListener {
 
     public static final String TRANSPARENCY_ENABLED_PROPERTY
-            = "TransparencyEnabled";
+        = "TransparencyEnabled";
 
     private final ColorPipette pipette;
     private final ColorWheelPanel colorWheelPanel;
@@ -275,12 +275,13 @@ public class DarkColorChooserPanel extends AbstractColorChooserPanel implements
                         int alpha = isColorTransparencySelectionEnabled()
                                     ? Integer.valueOf(hexStr.substring(6, 8), 16) : 255;
                         Color c = new Color(
-                                Integer.valueOf(hexStr.substring(0, 2), 16),
+                            Integer.valueOf(hexStr.substring(0, 2), 16),
-                                Integer.valueOf(hexStr.substring(2, 4), 16),
+                            Integer.valueOf(hexStr.substring(2, 4), 16),
-                                Integer.valueOf(hexStr.substring(4, 6), 16),
+                            Integer.valueOf(hexStr.substring(4, 6), 16),
-                                alpha);
+                            alpha);
                         colorWheelPanel.setColor(c, textHex);
-                    } catch (NumberFormatException | IndexOutOfBoundsException ignore) {}
+                    } catch (NumberFormatException | IndexOutOfBoundsException ignore) {
+                    }
                 }
             });
         }

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/DarkColorChooserUI.java

@@ -80,12 +80,12 @@ public class DarkColorChooserUI extends BasicColorChooserUI {
     @Override
     protected AbstractColorChooserPanel[] createDefaultChoosers() {
         return new AbstractColorChooserPanel[]{
-                new DarkColorChooserPanel(new DarkColorModel(),
+            new DarkColorChooserPanel(new DarkColorModel(),
-                                          new DarkColorModelHSL(),
+                                      new DarkColorModelHSL(),
 //                                          new DarkColorModelHSB(),
-                                          new DarkColorModelCMYK()),
+                                      new DarkColorModelCMYK()),
-                new DarkSwatchesChooserPanel(),
+            new DarkSwatchesChooserPanel(),
-        };
+            };
     }
 
     @Override

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/DarkSwatchesChooserPanel.java

@@ -31,12 +31,7 @@ import javax.swing.border.LineBorder;
 import javax.swing.colorchooser.AbstractColorChooserPanel;
 import javax.swing.colorchooser.ColorSelectionModel;
 import java.awt.*;
-import java.awt.event.KeyAdapter;
+import java.awt.event.*;
-import java.awt.event.KeyEvent;
-import java.awt.event.KeyListener;
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseEvent;
-import java.awt.event.MouseListener;
 import java.io.Serializable;
 
 /**

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/MainSwatchPanel.java

@@ -50,456 +50,456 @@ class MainSwatchPanel extends SwatchPanel {
 
     private int[] initRawValues() {
         return new int[]{
-                0, 0, 0,
+            0, 0, 0,
-                31, 0, 0,
+            31, 0, 0,
-                31, 6, 0,
+            31, 6, 0,
-                31, 12, 0,
+            31, 12, 0,
-                31, 18, 0,
+            31, 18, 0,
-                31, 24, 0,
+            31, 24, 0,
-                31, 31, 0,
+            31, 31, 0,
-                24, 31, 0,
+            24, 31, 0,
-                18, 31, 0,
+            18, 31, 0,
-                12, 31, 0,
+            12, 31, 0,
-                6, 31, 0,
+            6, 31, 0,
-                0, 31, 0,
+            0, 31, 0,
-                0, 31, 6,
+            0, 31, 6,
-                0, 31, 12,
+            0, 31, 12,
-                0, 31, 18,
+            0, 31, 18,
-                0, 31, 24,
+            0, 31, 24,
-                0, 31, 31,
+            0, 31, 31,
-                0, 24, 31,
+            0, 24, 31,
-                0, 18, 31,
+            0, 18, 31,
-                0, 12, 31,
+            0, 12, 31,
-                0, 6, 31,
+            0, 6, 31,
-                0, 0, 31,
+            0, 0, 31,
-                6, 0, 31,
+            6, 0, 31,
-                12, 0, 31,
+            12, 0, 31,
-                18, 0, 31,
+            18, 0, 31,
-                24, 0, 31,
+            24, 0, 31,
-                31, 0, 31,
+            31, 0, 31,
-                31, 0, 24,
+            31, 0, 24,
-                31, 0, 18,
+            31, 0, 18,
-                31, 0, 12,
+            31, 0, 12,
-                18, 18, 18,
+            18, 18, 18,
-                61, 0, 0,
+            61, 0, 0,
-                61, 12, 0,
+            61, 12, 0,
-                61, 24, 0,
+            61, 24, 0,
-                61, 37, 0,
+            61, 37, 0,
-                61, 49, 0,
+            61, 49, 0,
-                61, 61, 0,
+            61, 61, 0,
-                49, 61, 0,
+            49, 61, 0,
-                37, 61, 0,
+            37, 61, 0,
-                24, 61, 0,
+            24, 61, 0,
-                12, 61, 0,
+            12, 61, 0,
-                0, 61, 0,
+            0, 61, 0,
-                0, 61, 12,
+            0, 61, 12,
-                0, 61, 24,
+            0, 61, 24,
-                0, 61, 37,
+            0, 61, 37,
-                0, 61, 49,
+            0, 61, 49,
-                0, 61, 61,
+            0, 61, 61,
-                0, 49, 61,
+            0, 49, 61,
-                0, 37, 61,
+            0, 37, 61,
-                0, 24, 61,
+            0, 24, 61,
-                0, 12, 61,
+            0, 12, 61,
-                0, 0, 61,
+            0, 0, 61,
-                11, 0, 61,
+            11, 0, 61,
-                24, 0, 61,
+            24, 0, 61,
-                37, 0, 61,
+            37, 0, 61,
-                49, 0, 61,
+            49, 0, 61,
-                61, 0, 61,
+            61, 0, 61,
-                61, 0, 49,
+            61, 0, 49,
-                61, 0, 37,
+            61, 0, 37,
-                61, 0, 24,
+            61, 0, 24,
-                36, 36, 36,
+            36, 36, 36,
-                92, 0, 0,
+            92, 0, 0,
-                92, 18, 0,
+            92, 18, 0,
-                92, 37, 0,
+            92, 37, 0,
-                92, 55, 0,
+            92, 55, 0,
-                92, 73, 0,
+            92, 73, 0,
-                92, 92, 0,
+            92, 92, 0,
-                73, 92, 0,
+            73, 92, 0,
-                55, 92, 0,
+            55, 92, 0,
-                37, 92, 0,
+            37, 92, 0,
-                18, 92, 0,
+            18, 92, 0,
-                0, 92, 0,
+            0, 92, 0,
-                0, 92, 18,
+            0, 92, 18,
-                0, 92, 37,
+            0, 92, 37,
-                0, 92, 55,
+            0, 92, 55,
-                0, 92, 73,
+            0, 92, 73,
-                0, 92, 92,
+            0, 92, 92,
-                0, 73, 92,
+            0, 73, 92,
-                0, 55, 92,
+            0, 55, 92,
-                0, 37, 92,
+            0, 37, 92,
-                0, 18, 92,
+            0, 18, 92,
-                0, 0, 92,
+            0, 0, 92,
-                17, 0, 92,
+            17, 0, 92,
-                37, 0, 92,
+            37, 0, 92,
-                55, 0, 92,
+            55, 0, 92,
-                73, 0, 92,
+            73, 0, 92,
-                92, 0, 92,
+            92, 0, 92,
-                92, 0, 73,
+            92, 0, 73,
-                92, 0, 55,
+            92, 0, 55,
-                92, 0, 37,
+            92, 0, 37,
-                54, 54, 54,
+            54, 54, 54,
-                128, 0, 0,
+            128, 0, 0,
-                128, 26, 0,
+            128, 26, 0,
-                128, 51, 0,
+            128, 51, 0,
-                128, 77, 0,
+            128, 77, 0,
-                128, 102, 0,
+            128, 102, 0,
-                128, 128, 0,
+            128, 128, 0,
-                102, 128, 0,
+            102, 128, 0,
-                77, 128, 0,
+            77, 128, 0,
-                51, 128, 0,
+            51, 128, 0,
-                26, 128, 0,
+            26, 128, 0,
-                0, 128, 0,
+            0, 128, 0,
-                0, 128, 25,
+            0, 128, 25,
-                0, 128, 51,
+            0, 128, 51,
-                0, 128, 77,
+            0, 128, 77,
-                0, 128, 102,
+            0, 128, 102,
-                0, 128, 128,
+            0, 128, 128,
-                0, 102, 128,
+            0, 102, 128,
-                0, 77, 128,
+            0, 77, 128,
-                0, 51, 128,
+            0, 51, 128,
-                0, 26, 128,
+            0, 26, 128,
-                0, 0, 128,
+            0, 0, 128,
-                23, 0, 128,
+            23, 0, 128,
-                51, 0, 128,
+            51, 0, 128,
-                77, 0, 128,
+            77, 0, 128,
-                102, 0, 128,
+            102, 0, 128,
-                128, 0, 128,
+            128, 0, 128,
-                128, 0, 102,
+            128, 0, 102,
-                128, 0, 76,
+            128, 0, 76,
-                128, 0, 51,
+            128, 0, 51,
-                72, 72, 72,
+            72, 72, 72,
-                158, 0, 0,
+            158, 0, 0,
-                158, 32, 0,
+            158, 32, 0,
-                158, 63, 0,
+            158, 63, 0,
-                158, 95, 0,
+            158, 95, 0,
-                158, 126, 0,
+            158, 126, 0,
-                158, 158, 0,
+            158, 158, 0,
-                126, 158, 0,
+            126, 158, 0,
-                95, 158, 0,
+            95, 158, 0,
-                63, 158, 0,
+            63, 158, 0,
-                32, 158, 0,
+            32, 158, 0,
-                0, 158, 0,
+            0, 158, 0,
-                0, 158, 32,
+            0, 158, 32,
-                0, 158, 63,
+            0, 158, 63,
-                0, 158, 95,
+            0, 158, 95,
-                0, 158, 126,
+            0, 158, 126,
-                0, 158, 158,
+            0, 158, 158,
-                0, 126, 158,
+            0, 126, 158,
-                0, 95, 158,
+            0, 95, 158,
-                0, 63, 158,
+            0, 63, 158,
-                0, 32, 158,
+            0, 32, 158,
-                0, 0, 158,
+            0, 0, 158,
-                29, 0, 158,
+            29, 0, 158,
-                63, 0, 158,
+            63, 0, 158,
-                95, 0, 158,
+            95, 0, 158,
-                126, 0, 158,
+            126, 0, 158,
-                158, 0, 158,
+            158, 0, 158,
-                158, 0, 126,
+            158, 0, 126,
-                158, 0, 95,
+            158, 0, 95,
-                158, 0, 63,
+            158, 0, 63,
-                91, 91, 91,
+            91, 91, 91,
-                189, 0, 0,
+            189, 0, 0,
-                189, 38, 0,
+            189, 38, 0,
-                189, 75, 0,
+            189, 75, 0,
-                189, 113, 0,
+            189, 113, 0,
-                189, 151, 0,
+            189, 151, 0,
-                189, 189, 0,
+            189, 189, 0,
-                151, 189, 0,
+            151, 189, 0,
-                113, 189, 0,
+            113, 189, 0,
-                75, 189, 0,
+            75, 189, 0,
-                38, 189, 0,
+            38, 189, 0,
-                0, 189, 0,
+            0, 189, 0,
-                0, 189, 38,
+            0, 189, 38,
-                0, 189, 75,
+            0, 189, 75,
-                0, 189, 113,
+            0, 189, 113,
-                0, 189, 151,
+            0, 189, 151,
-                0, 189, 189,
+            0, 189, 189,
-                0, 151, 189,
+            0, 151, 189,
-                0, 113, 189,
+            0, 113, 189,
-                0, 75, 189,
+            0, 75, 189,
-                0, 38, 189,
+            0, 38, 189,
-                0, 0, 189,
+            0, 0, 189,
-                35, 0, 189,
+            35, 0, 189,
-                75, 0, 189,
+            75, 0, 189,
-                113, 0, 189,
+            113, 0, 189,
-                151, 0, 189,
+            151, 0, 189,
-                189, 0, 189,
+            189, 0, 189,
-                189, 0, 151,
+            189, 0, 151,
-                189, 0, 113,
+            189, 0, 113,
-                189, 0, 75,
+            189, 0, 75,
-                109, 109, 109,
+            109, 109, 109,
-                219, 0, 0,
+            219, 0, 0,
-                219, 44, 0,
+            219, 44, 0,
-                219, 88, 0,
+            219, 88, 0,
-                219, 132, 0,
+            219, 132, 0,
-                219, 175, 0,
+            219, 175, 0,
-                219, 219, 0,
+            219, 219, 0,
-                175, 219, 0,
+            175, 219, 0,
-                132, 219, 0,
+            132, 219, 0,
-                88, 219, 0,
+            88, 219, 0,
-                44, 219, 0,
+            44, 219, 0,
-                0, 219, 0,
+            0, 219, 0,
-                0, 219, 44,
+            0, 219, 44,
-                0, 219, 88,
+            0, 219, 88,
-                0, 219, 132,
+            0, 219, 132,
-                0, 219, 175,
+            0, 219, 175,
-                0, 219, 219,
+            0, 219, 219,
-                0, 175, 219,
+            0, 175, 219,
-                0, 132, 219,
+            0, 132, 219,
-                0, 88, 219,
+            0, 88, 219,
-                0, 44, 219,
+            0, 44, 219,
-                0, 0, 219,
+            0, 0, 219,
-                40, 0, 219,
+            40, 0, 219,
-                88, 0, 219,
+            88, 0, 219,
-                132, 0, 219,
+            132, 0, 219,
-                175, 0, 219,
+            175, 0, 219,
-                219, 0, 219,
+            219, 0, 219,
-                219, 0, 175,
+            219, 0, 175,
-                219, 0, 132,
+            219, 0, 132,
-                219, 0, 88,
+            219, 0, 88,
-                127, 127, 127,
+            127, 127, 127,
-                255, 0, 0,
+            255, 0, 0,
-                255, 51, 0,
+            255, 51, 0,
-                255, 102, 0,
+            255, 102, 0,
-                255, 153, 0,
+            255, 153, 0,
-                255, 204, 0,
+            255, 204, 0,
-                255, 255, 0,
+            255, 255, 0,
-                204, 255, 0,
+            204, 255, 0,
-                153, 255, 0,
+            153, 255, 0,
-                102, 255, 0,
+            102, 255, 0,
-                51, 255, 0,
+            51, 255, 0,
-                0, 255, 0,
+            0, 255, 0,
-                0, 255, 51,
+            0, 255, 51,
-                0, 255, 102,
+            0, 255, 102,
-                0, 255, 153,
+            0, 255, 153,
-                0, 255, 204,
+            0, 255, 204,
-                0, 255, 255,
+            0, 255, 255,
-                0, 204, 255,
+            0, 204, 255,
-                0, 153, 255,
+            0, 153, 255,
-                0, 102, 255,
+            0, 102, 255,
-                0, 51, 255,
+            0, 51, 255,
-                0, 0, 255,
+            0, 0, 255,
-                47, 0, 255,
+            47, 0, 255,
-                102, 0, 255,
+            102, 0, 255,
-                153, 0, 255,
+            153, 0, 255,
-                204, 0, 255,
+            204, 0, 255,
-                255, 0, 255,
+            255, 0, 255,
-                255, 0, 204,
+            255, 0, 204,
-                255, 0, 153,
+            255, 0, 153,
-                255, 0, 102,
+            255, 0, 102,
-                145, 145, 145,
+            145, 145, 145,
-                255, 31, 31,
+            255, 31, 31,
-                255, 75, 31,
+            255, 75, 31,
-                255, 120, 31,
+            255, 120, 31,
-                255, 165, 31,
+            255, 165, 31,
-                255, 210, 31,
+            255, 210, 31,
-                255, 255, 31,
+            255, 255, 31,
-                210, 255, 31,
+            210, 255, 31,
-                165, 255, 31,
+            165, 255, 31,
-                120, 255, 31,
+            120, 255, 31,
-                75, 255, 31,
+            75, 255, 31,
-                31, 255, 31,
+            31, 255, 31,
-                31, 255, 75,
+            31, 255, 75,
-                31, 255, 120,
+            31, 255, 120,
-                31, 255, 165,
+            31, 255, 165,
-                31, 255, 210,
+            31, 255, 210,
-                31, 255, 255,
+            31, 255, 255,
-                31, 210, 255,
+            31, 210, 255,
-                31, 165, 255,
+            31, 165, 255,
-                31, 120, 255,
+            31, 120, 255,
-                31, 75, 255,
+            31, 75, 255,
-                31, 31, 255,
+            31, 31, 255,
-                72, 31, 255,
+            72, 31, 255,
-                120, 31, 255,
+            120, 31, 255,
-                165, 31, 255,
+            165, 31, 255,
-                210, 31, 255,
+            210, 31, 255,
-                255, 31, 255,
+            255, 31, 255,
-                255, 31, 210,
+            255, 31, 210,
-                255, 31, 165,
+            255, 31, 165,
-                255, 31, 120,
+            255, 31, 120,
-                163, 163, 163,
+            163, 163, 163,
-                255, 61, 61,
+            255, 61, 61,
-                255, 100, 61,
+            255, 100, 61,
-                255, 139, 61,
+            255, 139, 61,
-                255, 177, 61,
+            255, 177, 61,
-                255, 216, 61,
+            255, 216, 61,
-                255, 255, 61,
+            255, 255, 61,
-                216, 255, 61,
+            216, 255, 61,
-                177, 255, 61,
+            177, 255, 61,
-                139, 255, 61,
+            139, 255, 61,
-                100, 255, 61,
+            100, 255, 61,
-                61, 255, 61,
+            61, 255, 61,
-                61, 255, 100,
+            61, 255, 100,
-                61, 255, 139,
+            61, 255, 139,
-                61, 255, 177,
+            61, 255, 177,
-                61, 255, 216,
+            61, 255, 216,
-                61, 255, 255,
+            61, 255, 255,
-                61, 216, 255,
+            61, 216, 255,
-                61, 177, 255,
+            61, 177, 255,
-                61, 139, 255,
+            61, 139, 255,
-                61, 100, 255,
+            61, 100, 255,
-                61, 61, 255,
+            61, 61, 255,
-                97, 61, 255,
+            97, 61, 255,
-                139, 61, 255,
+            139, 61, 255,
-                177, 61, 255,
+            177, 61, 255,
-                216, 61, 255,
+            216, 61, 255,
-                255, 61, 255,
+            255, 61, 255,
-                255, 61, 216,
+            255, 61, 216,
-                255, 61, 177,
+            255, 61, 177,
-                255, 61, 139,
+            255, 61, 139,
-                182, 182, 182,
+            182, 182, 182,
-                255, 92, 92,
+            255, 92, 92,
-                255, 124, 92,
+            255, 124, 92,
-                255, 157, 92,
+            255, 157, 92,
-                255, 190, 92,
+            255, 190, 92,
-                255, 222, 92,
+            255, 222, 92,
-                255, 255, 92,
+            255, 255, 92,
-                222, 255, 92,
+            222, 255, 92,
-                190, 255, 92,
+            190, 255, 92,
-                157, 255, 92,
+            157, 255, 92,
-                124, 255, 92,
+            124, 255, 92,
-                92, 255, 92,
+            92, 255, 92,
-                92, 255, 124,
+            92, 255, 124,
-                92, 255, 157,
+            92, 255, 157,
-                92, 255, 190,
+            92, 255, 190,
-                92, 255, 222,
+            92, 255, 222,
-                92, 255, 255,
+            92, 255, 255,
-                92, 222, 255,
+            92, 222, 255,
-                92, 190, 255,
+            92, 190, 255,
-                92, 157, 255,
+            92, 157, 255,
-                92, 124, 255,
+            92, 124, 255,
-                92, 92, 255,
+            92, 92, 255,
-                122, 92, 255,
+            122, 92, 255,
-                157, 92, 255,
+            157, 92, 255,
-                190, 92, 255,
+            190, 92, 255,
-                222, 92, 255,
+            222, 92, 255,
-                255, 92, 255,
+            255, 92, 255,
-                255, 92, 222,
+            255, 92, 222,
-                255, 92, 190,
+            255, 92, 190,
-                255, 92, 157,
+            255, 92, 157,
-                200, 200, 200,
+            200, 200, 200,
-                255, 128, 128,
+            255, 128, 128,
-                255, 153, 128,
+            255, 153, 128,
-                255, 179, 128,
+            255, 179, 128,
-                255, 204, 128,
+            255, 204, 128,
-                255, 230, 128,
+            255, 230, 128,
-                255, 255, 128,
+            255, 255, 128,
-                229, 255, 128,
+            229, 255, 128,
-                204, 255, 128,
+            204, 255, 128,
-                179, 255, 128,
+            179, 255, 128,
-                153, 255, 128,
+            153, 255, 128,
-                128, 255, 128,
+            128, 255, 128,
-                128, 255, 153,
+            128, 255, 153,
-                128, 255, 179,
+            128, 255, 179,
-                128, 255, 204,
+            128, 255, 204,
-                128, 255, 229,
+            128, 255, 229,
-                128, 255, 255,
+            128, 255, 255,
-                128, 229, 255,
+            128, 229, 255,
-                128, 204, 255,
+            128, 204, 255,
-                128, 179, 255,
+            128, 179, 255,
-                128, 153, 255,
+            128, 153, 255,
-                128, 128, 255,
+            128, 128, 255,
-                151, 128, 255,
+            151, 128, 255,
-                178, 128, 255,
+            178, 128, 255,
-                204, 128, 255,
+            204, 128, 255,
-                230, 128, 255,
+            230, 128, 255,
-                255, 128, 255,
+            255, 128, 255,
-                255, 128, 229,
+            255, 128, 229,
-                255, 128, 204,
+            255, 128, 204,
-                255, 128, 179,
+            255, 128, 179,
-                218, 218, 218,
+            218, 218, 218,
-                255, 158, 158,
+            255, 158, 158,
-                255, 177, 158,
+            255, 177, 158,
-                255, 197, 158,
+            255, 197, 158,
-                255, 216, 158,
+            255, 216, 158,
-                255, 236, 158,
+            255, 236, 158,
-                255, 255, 158,
+            255, 255, 158,
-                236, 255, 158,
+            236, 255, 158,
-                216, 255, 158,
+            216, 255, 158,
-                197, 255, 158,
+            197, 255, 158,
-                177, 255, 158,
+            177, 255, 158,
-                158, 255, 158,
+            158, 255, 158,
-                158, 255, 177,
+            158, 255, 177,
-                158, 255, 197,
+            158, 255, 197,
-                158, 255, 216,
+            158, 255, 216,
-                158, 255, 236,
+            158, 255, 236,
-                158, 255, 255,
+            158, 255, 255,
-                158, 236, 255,
+            158, 236, 255,
-                158, 216, 255,
+            158, 216, 255,
-                158, 197, 255,
+            158, 197, 255,
-                158, 177, 255,
+            158, 177, 255,
-                158, 158, 255,
+            158, 158, 255,
-                176, 158, 255,
+            176, 158, 255,
-                197, 158, 255,
+            197, 158, 255,
-                216, 158, 255,
+            216, 158, 255,
-                236, 158, 255,
+            236, 158, 255,
-                255, 158, 255,
+            255, 158, 255,
-                255, 158, 236,
+            255, 158, 236,
-                255, 158, 216,
+            255, 158, 216,
-                255, 158, 197,
+            255, 158, 197,
-                236, 236, 236,
+            236, 236, 236,
-                255, 189, 189,
+            255, 189, 189,
-                255, 202, 189,
+            255, 202, 189,
-                255, 215, 189,
+            255, 215, 189,
-                255, 228, 189,
+            255, 228, 189,
-                255, 242, 189,
+            255, 242, 189,
-                255, 255, 189,
+            255, 255, 189,
-                242, 255, 189,
+            242, 255, 189,
-                228, 255, 189,
+            228, 255, 189,
-                215, 255, 189,
+            215, 255, 189,
-                202, 255, 189,
+            202, 255, 189,
-                189, 255, 189,
+            189, 255, 189,
-                189, 255, 202,
+            189, 255, 202,
-                189, 255, 215,
+            189, 255, 215,
-                189, 255, 228,
+            189, 255, 228,
-                189, 255, 242,
+            189, 255, 242,
-                189, 255, 255,
+            189, 255, 255,
-                189, 242, 255,
+            189, 242, 255,
-                189, 228, 255,
+            189, 228, 255,
-                189, 215, 255,
+            189, 215, 255,
-                189, 202, 255,
+            189, 202, 255,
-                189, 189, 255,
+            189, 189, 255,
-                201, 189, 255,
+            201, 189, 255,
-                215, 189, 255,
+            215, 189, 255,
-                228, 189, 255,
+            228, 189, 255,
-                242, 189, 255,
+            242, 189, 255,
-                255, 189, 255,
+            255, 189, 255,
-                255, 189, 242,
+            255, 189, 242,
-                255, 189, 228,
+            255, 189, 228,
-                255, 189, 215,
+            255, 189, 215,
-                255, 255, 255,
+            255, 255, 255,
-                255, 219, 219,
+            255, 219, 219,
-                255, 226, 219,
+            255, 226, 219,
-                255, 234, 219,
+            255, 234, 219,
-                255, 241, 219,
+            255, 241, 219,
-                255, 248, 219,
+            255, 248, 219,
-                255, 255, 219,
+            255, 255, 219,
-                248, 255, 219,
+            248, 255, 219,
-                241, 255, 219,
+            241, 255, 219,
-                234, 255, 219,
+            234, 255, 219,
-                226, 255, 219,
+            226, 255, 219,
-                219, 255, 219,
+            219, 255, 219,
-                219, 255, 226,
+            219, 255, 226,
-                219, 255, 234,
+            219, 255, 234,
-                219, 255, 241,
+            219, 255, 241,
-                219, 255, 248,
+            219, 255, 248,
-                219, 255, 255,
+            219, 255, 255,
-                219, 248, 255,
+            219, 248, 255,
-                219, 241, 255,
+            219, 241, 255,
-                219, 234, 255,
+            219, 234, 255,
-                219, 226, 255,
+            219, 226, 255,
-                219, 219, 255,
+            219, 219, 255,
-                226, 219, 255,
+            226, 219, 255,
-                234, 219, 255,
+            234, 219, 255,
-                241, 219, 255,
+            241, 219, 255,
-                248, 219, 255,
+            248, 219, 255,
-                255, 219, 255,
+            255, 219, 255,
-                255, 219, 248,
+            255, 219, 248,
-                255, 219, 241,
+            255, 219, 241,
-                255, 219, 234,
+            255, 219, 234,
-        };
+            };
     }
 }

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/SlideComponent.java

@@ -53,7 +53,7 @@ class SlideComponent extends JComponent implements ColorListener {
     protected Color borderColor;
     protected Color shadowColor;
     protected Color knobFill;
-    private boolean isOpacity;
+    private final boolean isOpacity;
     private int pointerValue = 0;
     private int value = 0;
     private Unit unitType = Unit.LEVEL;

core/src/main/java/com/github/weisj/darklaf/ui/colorchooser/SwatchPanel.java

@@ -42,9 +42,9 @@ abstract class SwatchPanel extends JPanel {
     protected Dimension numSwatches;
     protected Dimension gap;
     private final ToolTipContext toolTipContext = new ToolTipContext(this)
-            .setAlignment(Alignment.CENTER)
+        .setAlignment(Alignment.CENTER)
-            .setToolTipRectSupplier(this::getSwatchBounds)
+        .setToolTipRectSupplier(this::getSwatchBounds)
-            .setHideOnExit(true);
+        .setHideOnExit(true);
     private int selRow;
     private int selCol;
 
@@ -86,14 +86,14 @@ abstract class SwatchPanel extends JPanel {
                             selCol--;
                             repaint();
                         } else if (selCol < numSwatches.width - 1
-                                && !SwatchPanel.this.getComponentOrientation().isLeftToRight()) {
+                                   && !SwatchPanel.this.getComponentOrientation().isLeftToRight()) {
                             selCol++;
                             repaint();
                         }
                         break;
                     case KeyEvent.VK_RIGHT:
                         if (selCol < numSwatches.width - 1
-                                && SwatchPanel.this.getComponentOrientation().isLeftToRight()) {
+                            && SwatchPanel.this.getComponentOrientation().isLeftToRight()) {
                             selCol++;
                             repaint();
                         } else if (selCol > 0 && !SwatchPanel.this.getComponentOrientation().isLeftToRight()) {

core/src/main/java/com/github/weisj/darklaf/ui/combobox/ComboBoxConstants.java

@@ -36,11 +36,11 @@ public interface ComboBoxConstants {
 
     static boolean isTreeCellEditor(final Component c) {
         return c instanceof JComponent
-            && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_IS_TREE_EDITOR));
+               && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_IS_TREE_EDITOR));
     }
 
     static boolean isTableCellEditor(final Component c) {
         return c instanceof JComponent
-            && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_IS_TABLE_EDITOR));
+               && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_IS_TABLE_EDITOR));
     }
 }

core/src/main/java/com/github/weisj/darklaf/ui/combobox/DarkComboBoxBorder.java

@@ -39,14 +39,14 @@ public class DarkComboBoxBorder implements Border, UIResource {
     protected final DarkComboBoxUI ui;
     protected Insets boxPadding;
     protected Insets cellPadding;
-    protected int borderSize;
+    protected final int borderSize;
-    protected int arcSize;
+    protected final int arcSize;
-    protected Color focusBorderColor;
+    protected final Color focusBorderColor;
-    protected Color inactiveBackground;
+    protected final Color inactiveBackground;
-    protected Color arrowBackground;
+    protected final Color arrowBackground;
-    protected Color background;
+    protected final Color background;
-    protected Color borderColor;
+    protected final Color borderColor;
-    protected Color inactiveBorderColor;
+    protected final Color inactiveBorderColor;
 
     public DarkComboBoxBorder(final DarkComboBoxUI ui) {
         this.ui = ui;

core/src/main/java/com/github/weisj/darklaf/ui/combobox/DarkComboBoxListener.java

@@ -33,7 +33,7 @@ import java.beans.PropertyChangeListener;
 
 public class DarkComboBoxListener extends MouseAdapter implements PropertyChangeListener, ComboBoxConstants {
 
-    protected JComboBox<?> comboBox;
+    protected final JComboBox<?> comboBox;
 
     public DarkComboBoxListener(final JComboBox<?> comboBox) {
         this.comboBox = comboBox;

core/src/main/java/com/github/weisj/darklaf/ui/combobox/DarkComboBoxUI.java

@@ -265,7 +265,7 @@ public class DarkComboBoxUI extends BasicComboBoxUI implements ComboBoxConstants
         int buttonWidth = squareButton
                           ? buttonHeight
                           : arrowButton.getPreferredSize().width
-                              + arrowButton.getInsets().left + arrowButton.getInsets().right;
+                            + arrowButton.getInsets().left + arrowButton.getInsets().right;
         //adjust the size based on the button width
         size.height += insets.top + insets.bottom;
         size.width += insets.left + insets.right + buttonWidth;

core/src/main/java/com/github/weisj/darklaf/ui/combobox/DarkComboPopup.java

@@ -58,7 +58,7 @@ public class DarkComboPopup extends BasicComboPopup {
      *
      * @param combo an instance of {@code JComboBox}
      */
-    public DarkComboPopup(final JComboBox combo) {
+    public DarkComboPopup(final JComboBox<Object> combo) {
         super(combo);
     }
 
@@ -114,11 +114,6 @@ public class DarkComboPopup extends BasicComboPopup {
         setFocusable(false);
     }
 
-    @Override
-    protected void configureList() {
-        super.configureList();
-    }
-
     @Override
     protected void togglePopup() {
         if (comboBox.getItemCount() == 0) return;
@@ -131,18 +126,6 @@ public class DarkComboPopup extends BasicComboPopup {
         }
     }
 
-    @Override
-    public void show() {
-        super.show();
-    }
-
-
-    @Override
-    public void hide() {
-        super.hide();
-    }
-
-
     protected void reset() {
         lastEvent = 0;
         if (visible) {

core/src/main/java/com/github/weisj/darklaf/ui/filechooser/DarkFileChooserUI.java

@@ -145,7 +145,7 @@ public class DarkFileChooserUI extends DarkFileChooserUIBridge {
                     }
                 }
             }
-        );
+                                          );
         if (fileChooser.isMultiSelectionEnabled()) {
             setFileName(fileNameString(fileChooser.getSelectedFiles()));
         } else {

core/src/main/java/com/github/weisj/darklaf/ui/filechooser/DarkFileChooserUIBridge.java

@@ -68,18 +68,18 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
     protected static final Dimension vstrut5 = new Dimension(1, 5);
     static final int space = 10;
     // Preferred and Minimum sizes for the dialog box
-    protected static int PREF_WIDTH = 500;
+    protected static final int PREF_WIDTH = 500;
-    protected static int PREF_HEIGHT = 326;
+    protected static final int PREF_HEIGHT = 326;
-    protected static Dimension PREF_SIZE = new Dimension(PREF_WIDTH, PREF_HEIGHT);
+    protected static final Dimension PREF_SIZE = new Dimension(PREF_WIDTH, PREF_HEIGHT);
-    protected static int MIN_WIDTH = 500;
+    protected static final int MIN_WIDTH = 500;
-    protected static int MIN_HEIGHT = 326;
+    protected static final int MIN_HEIGHT = 326;
-    protected static int LIST_PREF_WIDTH = 405;
+    protected static final int LIST_PREF_WIDTH = 405;
-    protected static int LIST_PREF_HEIGHT = 135;
+    protected static final int LIST_PREF_HEIGHT = 135;
-    protected static Dimension LIST_PREF_SIZE = new Dimension(LIST_PREF_WIDTH, LIST_PREF_HEIGHT);
+    protected static final Dimension LIST_PREF_SIZE = new Dimension(LIST_PREF_WIDTH, LIST_PREF_HEIGHT);
     protected JLabel lookInLabel;
     protected JComboBox<Object> directoryComboBox;
     protected DirectoryComboBoxModel directoryComboBoxModel;
-    protected Action directoryComboBoxAction = new DirectoryComboBoxAction();
+    protected final Action directoryComboBoxAction = new DirectoryComboBoxAction();
     protected FilterComboBoxModel filterComboBoxModel;
     protected JTextField fileNameTextField;
     protected DarkFilePaneUIBridge filePane;
@@ -273,7 +273,7 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
         File f = (File) e.getNewValue();
         JFileChooser fc = getFileChooser();
         if (f != null
-                && ((fc.isFileSelectionEnabled() && !f.isDirectory())
+            && ((fc.isFileSelectionEnabled() && !f.isDirectory())
                 || (f.isDirectory() && fc.isDirectorySelectionEnabled()))) {
 
             setFileName(fileNameString(f));
@@ -284,8 +284,8 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
         File[] files = (File[]) e.getNewValue();
         JFileChooser fc = getFileChooser();
         if (files != null
-                && files.length > 0
+            && files.length > 0
-                && (files.length > 1 || fc.isDirectorySelectionEnabled() || !files[0].isDirectory())) {
+            && (files.length > 1 || fc.isDirectorySelectionEnabled() || !files[0].isDirectory())) {
             setFileName(fileNameString(files));
         }
     }
@@ -322,9 +322,9 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
         JFileChooser fc = getFileChooser();
         File currentDirectory = fc.getCurrentDirectory();
         if (currentDirectory != null
-                && fc.isDirectorySelectionEnabled()
+            && fc.isDirectorySelectionEnabled()
-                && !fc.isFileSelectionEnabled()
+            && !fc.isFileSelectionEnabled()
-                && fc.getFileSystemView().isFileSystem(currentDirectory)) {
+            && fc.getFileSystemView().isFileSystem(currentDirectory)) {
 
             setFileName(currentDirectory.getPath());
         } else {
@@ -545,8 +545,8 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
         } else {
             JFileChooser fc = getFileChooser();
             if ((fc.isDirectorySelectionEnabled() && !fc.isFileSelectionEnabled()) ||
-                    (fc.isDirectorySelectionEnabled() && fc.isFileSelectionEnabled()
+                (fc.isDirectorySelectionEnabled() && fc.isFileSelectionEnabled()
-                            && fc.getFileSystemView().isFileSystemRoot(file))) {
+                 && fc.getFileSystemView().isFileSystemRoot(file))) {
                 return file.getPath();
             } else {
                 return file.getName();
@@ -592,8 +592,8 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
     }
 
     protected static void groupLabels(final AlignedLabel[] group) {
-        for (int i = 0; i < group.length; i++) {
+        for (AlignedLabel alignedLabel : group) {
-            group[i].group = group;
+            alignedLabel.group = group;
         }
     }
 
@@ -631,8 +631,8 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
         int prefWidth = PREF_SIZE.width;
         Dimension d = c.getLayout().preferredLayoutSize(c);
         if (d != null) {
-            return new Dimension(d.width < prefWidth ? prefWidth : d.width,
+            return new Dimension(Math.max(d.width, prefWidth),
-                                 d.height < PREF_SIZE.height ? PREF_SIZE.height : d.height);
+                                 Math.max(d.height, PREF_SIZE.height));
         } else {
             return new Dimension(prefWidth, PREF_SIZE.height);
         }
@@ -699,7 +699,7 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
      * right, flushed right. The widths of all components will be set to the largest preferred size width.
      */
     protected static class ButtonAreaLayout implements LayoutManager {
-        protected int hGap = 5;
+        protected final int hGap = 5;
         protected int topMargin = 17;
 
         public void addLayoutComponent(final String string, final Component comp) {
@@ -724,13 +724,13 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
                     int extraWidth = cInsets.left + cInsets.right;
                     int maxWidth = 0;
 
-                    for (int counter = 0; counter < numChildren; counter++) {
+                    for (Component child : children) {
-                        Dimension aSize = children[counter].getPreferredSize();
+                        Dimension aSize = child.getPreferredSize();
                         height = Math.max(height, aSize.height);
                         maxWidth = Math.max(maxWidth, aSize.width);
                     }
                     return new Dimension(extraWidth + numChildren * maxWidth +
-                                                 (numChildren - 1) * hGap,
+                                         (numChildren - 1) * hGap,
                                          extraHeight + height);
                 }
             }
@@ -820,7 +820,7 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
      *
      * @deprecated As of JDK version 9. Obsolete class.
      */
-    protected class SingleClickListener extends MouseAdapter {
+    protected static class SingleClickListener extends MouseAdapter {
         /**
          * Constructs an instance of {@code SingleClickListener}.
          *
@@ -836,16 +836,16 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
      * @deprecated As of JDK version 9. Obsolete class.
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
-    protected class FileRenderer extends DefaultListCellRenderer {
+    protected static class FileRenderer extends DefaultListCellRenderer {
     }
 
     //
     // Renderer for DirectoryComboBox
     //
     @SuppressWarnings("serial")
-            // Superclass is not serializable across versions
+        // Superclass is not serializable across versions
     class DirectoryComboBoxRenderer extends DefaultListCellRenderer {
-        IndentIcon ii = new IndentIcon();
+        final IndentIcon ii = new IndentIcon();
 
         public Component getListCellRendererComponent(final JList<?> list, final Object value,
                                                       final int index, final boolean isSelected,
@@ -859,8 +859,7 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
             }
             File directory = (File) value;
             setText(getFileChooser().getName(directory));
-            Icon icon = getFileChooser().getIcon(directory);
+            ii.icon = getFileChooser().getIcon(directory);
-            ii.icon = icon;
             ii.depth = directoryComboBoxModel.getDepth(index);
             setIcon(ii);
 
@@ -868,7 +867,7 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
         }
     }
 
-    class IndentIcon implements Icon {
+    static class IndentIcon implements Icon {
 
         Icon icon = null;
         int depth = 0;
@@ -896,11 +895,11 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
      */
     @SuppressWarnings("serial") // Superclass is not serializable across versions
     protected class DirectoryComboBoxModel extends AbstractListModel<Object> implements ComboBoxModel<Object> {
-        Vector<File> directories = new Vector<File>();
+        final Vector<File> directories = new Vector<>();
         int[] depths = null;
         File selectedDirectory = null;
-        JFileChooser chooser = getFileChooser();
+        final JFileChooser chooser = getFileChooser();
-        FileSystemView fsv = chooser.getFileSystemView();
+        final FileSystemView fsv = chooser.getFileSystemView();
 
         /**
          * Constructs an instance of {@code DirectoryComboBoxModel}.
@@ -951,7 +950,7 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
                 File sf = useShellFolder ? ShellFolder.getShellFolder(canonical)
                                          : canonical;
                 File f = sf;
-                Vector<File> path = new Vector<File>(10);
+                Vector<File> path = new Vector<>(10);
                 do {
                     path.addElement(f);
                 } while ((f = f.getParentFile()) != null);
@@ -1027,7 +1026,8 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
      * Data model for a type-face selection combo-box.
      */
     @SuppressWarnings("serial") // Same-version serialization only
-    protected class FilterComboBoxModel extends AbstractListModel<Object> implements ComboBoxModel<Object>, PropertyChangeListener {
+    protected class FilterComboBoxModel extends AbstractListModel<Object>
+        implements ComboBoxModel<Object>, PropertyChangeListener {
 
         /**
          * An array of file filters.
@@ -1071,6 +1071,7 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
                 for (FileFilter filter : filters) {
                     if (filter == currentFilter) {
                         found = true;
+                        break;
                     }
                 }
                 if (!found) {
@@ -1124,7 +1125,7 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
     }
 
     @SuppressWarnings("serial") // Superclass is not serializable across versions
-    protected class AlignedLabel extends JLabel {
+    protected static class AlignedLabel extends JLabel {
         protected AlignedLabel[] group;
         protected int maxWidth = 0;
 
@@ -1148,11 +1149,11 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
         protected int getMaxWidth() {
             if (maxWidth == 0 && group != null) {
                 int max = 0;
-                for (int i = 0; i < group.length; i++) {
+                for (AlignedLabel label : group) {
-                    max = Math.max(group[i].getSuperPreferredWidth(), max);
+                    max = Math.max(label.getSuperPreferredWidth(), max);
                 }
-                for (int i = 0; i < group.length; i++) {
+                for (AlignedLabel alignedLabel : group) {
-                    group[i].maxWidth = max;
+                    alignedLabel.maxWidth = max;
                 }
             }
             return maxWidth;

core/src/main/java/com/github/weisj/darklaf/ui/filechooser/DarkFilePane.java

@@ -194,7 +194,7 @@ public class DarkFilePane extends DarkFilePaneUIBridge {
         detailsTable.setFont(font);
 
         TableCellRenderer headerRenderer =
-                new AlignableTableHeaderRenderer(detailsTable.getTableHeader().getDefaultRenderer());
+            new AlignableTableHeaderRenderer(detailsTable.getTableHeader().getDefaultRenderer());
         detailsTable.getTableHeader().setDefaultRenderer(headerRenderer);
         TableCellRenderer cellRenderer = new DetailsTableCellRenderer(chooser);
         detailsTable.setDefaultRenderer(Object.class, cellRenderer);
@@ -301,7 +301,7 @@ public class DarkFilePane extends DarkFilePaneUIBridge {
                 int editX = icon == null ? 20 : icon.getIconWidth() + 4;
 
                 int gap = 0;
-                ListCellRenderer renderer = list.getCellRenderer();
+                ListCellRenderer<?> renderer = list.getCellRenderer();
                 if (renderer instanceof JLabel) {
                     gap = ((JLabel) renderer).getIconTextGap() - 1;
                 }
@@ -446,9 +446,9 @@ public class DarkFilePane extends DarkFilePaneUIBridge {
                 // For single click, we handle editing file name
                 if (evt.getClickCount() == 1 && source instanceof JList) {
                     if ((!fc.isMultiSelectionEnabled() || fc.getSelectedFiles().length <= 1)
-                            && listSelectionModel.isSelectedIndex(index)
+                        && listSelectionModel.isSelectedIndex(index)
-                            && getEditIndex() == index && editFile == null
+                        && getEditIndex() == index && editFile == null
-                            && DarkUIUtil.isOverText(evt, index, list)) {
+                        && DarkUIUtil.isOverText(evt, index, list)) {
                         editFileName(index);
                     } else {
                         setEditIndex(index);

core/src/main/java/com/github/weisj/darklaf/ui/filechooser/DarkFilePaneUIBridge.java

@@ -80,10 +80,10 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     public static final int VIEWTYPE_DETAILS = 1;
     protected static final int VIEWTYPE_COUNT = 2;
     protected static final Cursor waitCursor =
-            Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR);
+        Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR);
     protected static final int COLUMN_FILENAME = 0;
     protected static final int COLUMN_SIZE = 1;
-    protected static FocusListener repaintListener = new FocusListener() {
+    protected static final FocusListener repaintListener = new FocusListener() {
         public void focusGained(final FocusEvent fe) {
             repaintSelection(fe.getSource());
         }
@@ -94,7 +94,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
 
         protected void repaintSelection(final Object source) {
             if (source instanceof JList) {
-                repaintListSelection((JList) source);
+                repaintListSelection((JList<?>) source);
             } else if (source instanceof JTable) {
                 repaintTableSelection((JTable) source);
             }
@@ -125,7 +125,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     };
     protected Action[] actions;
     protected int viewType = -1;
-    protected JPanel[] viewPanels = new JPanel[VIEWTYPE_COUNT];
+    protected final JPanel[] viewPanels = new JPanel[VIEWTYPE_COUNT];
     protected JPanel currentViewPanel;
     protected String[] viewTypeActionNames;
     protected String filesListAccessibleName = null;
@@ -141,7 +141,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     protected String renameErrorTitleText;
     protected String renameErrorText;
     protected String renameErrorFileExistsText;
-    protected boolean smallIconsView = false;
+    protected final boolean smallIconsView = false;
     protected Border listViewBorder;
     protected Color listViewBackground;
     protected boolean listViewWindowsStyle;
@@ -155,7 +155,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     // be selected when it appears in the model.
     protected File newFolderFile;
     // Used for accessing methods in the corresponding UI class
-    protected FileChooserUIAccessor fileChooserUIAccessor;
+    protected final FileChooserUIAccessor fileChooserUIAccessor;
     protected DetailsTableModel detailsTableModel;
     protected DetailsTableRowSorter rowSorter;
     protected final KeyListener detailsKeyListener = new KeyAdapter() {
@@ -184,7 +184,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
             int rowCount = model.getSize();
 
             if (detailsTable == null || rowCount == 0 ||
-                    e.isAltDown() || e.isControlDown() || e.isMetaDown()) {
+                e.isAltDown() || e.isControlDown() || e.isMetaDown()) {
                 return;
             }
 
@@ -240,7 +240,9 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
             if (index >= 0) {
                 detailsTable.getSelectionModel().setSelectionInterval(index, index);
 
-                Rectangle cellRect = detailsTable.getCellRect(index, detailsTable.convertColumnIndexToView(COLUMN_FILENAME), false);
+                Rectangle cellRect = detailsTable.getCellRect(index,
+                                                              detailsTable.convertColumnIndexToView(COLUMN_FILENAME),
+                                                              false);
                 detailsTable.scrollRectToVisible(cellRect);
             }
         }
@@ -272,7 +274,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     int lastIndex = -1;
     File editFile = null;
     JTextField editCell = null;
-    protected FocusListener editorFocusListener = new FocusAdapter() {
+    protected final FocusListener editorFocusListener = new FocusAdapter() {
         public void focusLost(final FocusEvent e) {
             if (!e.isTemporary()) {
                 applyEdit();
@@ -348,7 +350,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
         Boolean prop = (Boolean) chooser.getClientProperty("FileChooser.useShellFolder");
 
         return prop == null ? chooser.getFileSystemView().equals(FileSystemView.getFileSystemView())
-                            : prop.booleanValue();
+                            : prop;
     }
 
     public void uninstallUI() {
@@ -458,17 +460,17 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
         UIDefaults metal = MetalUIDefaults.DEFAULTS;
 
         viewMenuLabelText =
-                metal.getString("FileChooser.viewMenuLabelText", l);
+            metal.getString("FileChooser.viewMenuLabelText", l);
         refreshActionLabelText =
-                metal.getString("FileChooser.refreshActionLabelText", l);
+            metal.getString("FileChooser.refreshActionLabelText", l);
         newFolderActionLabelText =
-                metal.getString("FileChooser.newFolderActionLabelText", l);
+            metal.getString("FileChooser.newFolderActionLabelText", l);
 
         viewTypeActionNames = new String[VIEWTYPE_COUNT];
         viewTypeActionNames[VIEWTYPE_LIST] =
-                metal.getString("FileChooser.listViewActionLabelText", l);
+            metal.getString("FileChooser.listViewActionLabelText", l);
         viewTypeActionNames[VIEWTYPE_DETAILS] =
-                metal.getString("FileChooser.detailsViewActionLabelText", l);
+            metal.getString("FileChooser.detailsViewActionLabelText", l);
 
         kiloByteString = UIManager.getString("FileChooser.fileSizeKiloBytes", l);
         megaByteString = UIManager.getString("FileChooser.fileSizeMegaBytes", l);
@@ -491,7 +493,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     public Action[] getActions() {
         if (actions == null) {
             @SuppressWarnings("serial")
-                    // JDK-implementation class
+                // JDK-implementation class
             class FilePaneAction extends AbstractAction {
                 FilePaneAction(final String name) {
                     this(name, name);
@@ -515,8 +517,8 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
                         JFileChooser fc = getFileChooser();
                         int index = listSelectionModel.getMinSelectionIndex();
                         if (index >= 0 && editFile == null &&
-                                (!fc.isMultiSelectionEnabled() ||
+                            (!fc.isMultiSelectionEnabled() ||
-                                        fc.getSelectedFiles().length <= 1)) {
+                             fc.getSelectedFiles().length <= 1)) {
 
                             editFileName(index);
                         }
@@ -622,7 +624,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
             // Install cell editor for editing file name
             if (!readOnly && columnModel.getColumnCount() > COLUMN_FILENAME) {
                 columnModel.getColumn(COLUMN_FILENAME).
-                        setCellEditor(getDetailsTableCellEditor());
+                    setCellEditor(getDetailsTableCellEditor());
             }
 
             table.setColumnModel(columnModel);
@@ -785,7 +787,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
                 // Remove files that shouldn't be selected and add files which should be selected
                 // Note: Assume files are already sorted in compareTo order.
                 while (shouldIndex < files.length &&
-                        actuallyIndex < selectedObjects.length) {
+                       actuallyIndex < selectedObjects.length) {
                     int comparison = files[shouldIndex].compareTo((File) selectedObjects[actuallyIndex]);
                     if (comparison < 0) {
                         doSelectFile(files[shouldIndex++]);
@@ -810,7 +812,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
                 // restore the anchor and lead
                 if (listSelectionModel instanceof DefaultListSelectionModel) {
                     ((DefaultListSelectionModel) listSelectionModel).
-                                                                            moveLeadSelectionIndex(lead);
+                                                                        moveLeadSelectionIndex(lead);
                     listSelectionModel.setAnchorSelectionIndex(anchor);
                 }
             } finally {
@@ -846,7 +848,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
 
     protected void doDeselectFile(final Object fileToDeselect) {
         int index = getRowSorter().convertRowIndexToView(
-                getModel().indexOf(fileToDeselect));
+            getModel().indexOf(fileToDeselect));
         listSelectionModel.removeSelectionInterval(index, index);
     }
 
@@ -855,7 +857,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
         File f = (File) e.getNewValue();
         JFileChooser fc = getFileChooser();
         if (f != null
-                && ((fc.isFileSelectionEnabled() && !f.isDirectory())
+            && ((fc.isFileSelectionEnabled() && !f.isDirectory())
                 || (f.isDirectory() && fc.isDirectorySelectionEnabled()))) {
 
             setFileSelected();
@@ -867,8 +869,8 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
         File[] files = (File[]) e.getNewValue();
         JFileChooser fc = getFileChooser();
         if (files != null
-                && files.length > 0
+            && files.length > 0
-                && (files.length > 1 || fc.isDirectorySelectionEnabled() || !files[0].isDirectory())) {
+            && (files.length > 1 || fc.isDirectorySelectionEnabled() || !files[0].isDirectory())) {
             setFileSelected();
         }
     }
@@ -926,32 +928,42 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
         }
 
         String s = e.getPropertyName();
-        if (s.equals(JFileChooser.SELECTED_FILE_CHANGED_PROPERTY)) {
+        switch (s) {
-            doSelectedFileChanged(e);
+            case JFileChooser.SELECTED_FILE_CHANGED_PROPERTY:
-        } else if (s.equals(JFileChooser.SELECTED_FILES_CHANGED_PROPERTY)) {
+                doSelectedFileChanged(e);
-            doSelectedFilesChanged(e);
+                break;
-        } else if (s.equals(JFileChooser.DIRECTORY_CHANGED_PROPERTY)) {
+            case JFileChooser.SELECTED_FILES_CHANGED_PROPERTY:
-            doDirectoryChanged(e);
+                doSelectedFilesChanged(e);
-        } else if (s.equals(JFileChooser.FILE_FILTER_CHANGED_PROPERTY)) {
+                break;
-            doFilterChanged(e);
+            case JFileChooser.DIRECTORY_CHANGED_PROPERTY:
-        } else if (s.equals(JFileChooser.FILE_SELECTION_MODE_CHANGED_PROPERTY)) {
+                doDirectoryChanged(e);
-            doFileSelectionModeChanged(e);
+                break;
-        } else if (s.equals(JFileChooser.MULTI_SELECTION_ENABLED_CHANGED_PROPERTY)) {
+            case JFileChooser.FILE_FILTER_CHANGED_PROPERTY:
-            doMultiSelectionChanged(e);
+                doFilterChanged(e);
-        } else if (s.equals(JFileChooser.CANCEL_SELECTION)) {
+                break;
-            applyEdit();
+            case JFileChooser.FILE_SELECTION_MODE_CHANGED_PROPERTY:
-        } else if (s.equals("busy")) {
+                doFileSelectionModeChanged(e);
-            setCursor((Boolean) e.getNewValue() ? waitCursor : null);
+                break;
-        } else if (s.equals(PropertyKey.COMPONENT_ORIENTATION)) {
+            case JFileChooser.MULTI_SELECTION_ENABLED_CHANGED_PROPERTY:
-            ComponentOrientation o = (ComponentOrientation) e.getNewValue();
+                doMultiSelectionChanged(e);
-            JFileChooser cc = (JFileChooser) e.getSource();
+                break;
-            if (o != e.getOldValue()) {
+            case JFileChooser.CANCEL_SELECTION:
-                cc.applyComponentOrientation(o);
+                applyEdit();
-            }
+                break;
-            if (detailsTable != null) {
+            case "busy":
-                detailsTable.setComponentOrientation(o);
+                setCursor((Boolean) e.getNewValue() ? waitCursor : null);
-                detailsTable.getParent().getParent().setComponentOrientation(o);
+                break;
-            }
+            case PropertyKey.COMPONENT_ORIENTATION:
+                ComponentOrientation o = (ComponentOrientation) e.getNewValue();
+                JFileChooser cc = (JFileChooser) e.getSource();
+                if (o != e.getOldValue()) {
+                    cc.applyComponentOrientation(o);
+                }
+                if (detailsTable != null) {
+                    detailsTable.setComponentOrientation(o);
+                    detailsTable.getParent().getParent().setComponentOrientation(o);
+                }
+                break;
         }
     }
 
@@ -1076,7 +1088,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     @SuppressWarnings("serial")
     // JDK-implementation class
     protected class ViewTypeAction extends AbstractAction {
-        protected int viewType;
+        protected final int viewType;
 
         ViewTypeAction(final int viewType) {
             super(viewTypeActionNames[viewType]);
@@ -1106,7 +1118,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
      */
     @SuppressWarnings("serial") // JDK-implementation class
     protected class SortableListModel extends AbstractListModel<Object>
-            implements TableModelListener, RowSorterListener {
+        implements TableModelListener, RowSorterListener {
 
         public SortableListModel() {
             getDetailsTableModel().addTableModelListener(this);
@@ -1132,10 +1144,10 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     }
 
     @SuppressWarnings("serial")
-            // JDK-implementation class
+        // JDK-implementation class
     class DetailsTableModel extends AbstractTableModel implements ListDataListener {
-        JFileChooser chooser;
+        final JFileChooser chooser;
-        BasicDirectoryModel directoryModel;
+        final BasicDirectoryModel directoryModel;
 
         ShellFolderColumnInfo[] columns;
         int[] columnMap;
@@ -1242,7 +1254,8 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
                         final File f2 = fsv.createFileObject(f.getParentFile(), newFileName);
                         if (f2.exists()) {
                             JOptionPane.showMessageDialog(chooser, MessageFormat.format(renameErrorFileExistsText,
-                                                                                        oldFileName), renameErrorTitleText,
+                                                                                        oldFileName),
+                                                          renameErrorTitleText,
                                                           JOptionPane.ERROR_MESSAGE);
                         } else {
                             if (DarkFilePaneUIBridge.this.getModel().renameFile(f, f2)) {
@@ -1262,7 +1275,8 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
                                     // chooser.setSelectedFile(null);
                                 }
                             } else {
-                                JOptionPane.showMessageDialog(chooser, MessageFormat.format(renameErrorText, oldFileName),
+                                JOptionPane.showMessageDialog(chooser,
+                                                              MessageFormat.format(renameErrorText, oldFileName),
                                                               renameErrorTitleText, JOptionPane.ERROR_MESSAGE);
                             }
                         }
@@ -1367,8 +1381,8 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
      * comparator.
      */
     protected class DirectoriesFirstComparatorWrapper implements Comparator<File> {
-        protected Comparator<Object> comparator;
+        protected final Comparator<Object> comparator;
-        protected int column;
+        protected final int column;
 
         @SuppressWarnings("unchecked")
         public DirectoriesFirstComparatorWrapper(final int column, final Comparator<?> comparator) {
@@ -1390,9 +1404,9 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
             }
             if (detailsTableModel.getColumns()[column].isCompareByColumn()) {
                 return comparator.compare(
-                        getDetailsTableModel().getFileColumnValue(f1, column),
+                    getDetailsTableModel().getFileColumnValue(f1, column),
-                        getDetailsTableModel().getFileColumnValue(f2, column)
+                    getDetailsTableModel().getFileColumnValue(f2, column)
-                );
+                                         );
             }
             // For this column we need to pass the file itself (not a
             // column value) to the comparator
@@ -1427,8 +1441,8 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     @SuppressWarnings("serial")
     // JDK-implementation class
     public class DetailsTableCellRenderer extends DarkTableCellRenderer {
-        JFileChooser chooser;
+        final JFileChooser chooser;
-        DateFormat df;
+        final DateFormat df;
 
         public DetailsTableCellRenderer(final JFileChooser chooser) {
             this.chooser = chooser;
@@ -1441,7 +1455,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
                                                        final int row, final int column) {
 
             if ((table.convertColumnIndexToModel(column) != COLUMN_FILENAME ||
-                    (listViewWindowsStyle && !table.isFocusOwner())) && !fullRowSelection) {
+                 (listViewWindowsStyle && !table.isFocusOwner())) && !fullRowSelection) {
                 isSelected = false;
             }
 
@@ -1502,18 +1516,18 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     }
 
     protected class AlignableTableHeaderRenderer implements TableCellRenderer {
-        TableCellRenderer wrappedRenderer;
+        final TableCellRenderer wrappedRenderer;
 
         public AlignableTableHeaderRenderer(final TableCellRenderer wrappedRenderer) {
             this.wrappedRenderer = wrappedRenderer;
         }
 
         public Component getTableCellRendererComponent(
-                final JTable table, final Object value, final boolean isSelected,
+            final JTable table, final Object value, final boolean isSelected,
-                final boolean hasFocus, final int row, final int column) {
+            final boolean hasFocus, final int row, final int column) {
 
             Component c = wrappedRenderer.getTableCellRendererComponent(
-                    table, value, isSelected, hasFocus, row, column);
+                table, value, isSelected, hasFocus, row, column);
 
             int modelColumn = table.convertColumnIndexToModel(column);
             ShellFolderColumnInfo columnInfo = detailsTableModel.getColumns()[modelColumn];
@@ -1548,7 +1562,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
             setFileSelected();
             if (editFile != null) {
                 editFileName(getRowSorter().convertRowIndexToView(
-                        getModel().indexOf(editFile)));
+                    getModel().indexOf(editFile)));
                 editFile = null;
             }
         }
@@ -1606,8 +1620,8 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
                 index = table.rowAtPoint(p);
 
                 boolean pointOutsidePrefSize =
-                        SwingUtilities2.pointOutsidePrefSize(
+                    SwingUtilities2.pointOutsidePrefSize(
-                                table, index, table.columnAtPoint(p), p);
+                        table, index, table.columnAtPoint(p), p);
 
                 if (pointOutsidePrefSize && !fullRowSelection) {
                     return;
@@ -1615,7 +1629,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
 
                 // Translate point from table to list
                 if (index >= 0 && list != null &&
-                        listSelectionModel.isSelectedIndex(index)) {
+                    listSelectionModel.isSelectedIndex(index)) {
 
                     // Make a new event with the list as source, placing the
                     // click in the corresponding list cell.
@@ -1642,8 +1656,8 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
                 // For single click, we handle editing file name
                 if (evt.getClickCount() == 1 && source instanceof JList) {
                     if ((!fc.isMultiSelectionEnabled() || fc.getSelectedFiles().length <= 1)
-                            && listSelectionModel.isSelectedIndex(index)
+                        && listSelectionModel.isSelectedIndex(index)
-                            && getEditIndex() == index && editFile == null) {
+                        && getEditIndex() == index && editFile == null) {
 
                         editFileName(index);
                     } else {
@@ -1717,7 +1731,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
             // Lazy creation of Basic's listener
             if (doubleClickListener == null && list != null) {
                 doubleClickListener =
-                        fileChooserUIAccessor.createDoubleClickListener(list);
+                    fileChooserUIAccessor.createDoubleClickListener(list);
             }
             return doubleClickListener;
         }

core/src/main/java/com/github/weisj/darklaf/ui/html/DarkHTML.java

@@ -67,7 +67,7 @@ public class DarkHTML extends BasicHTML {
                 rect = bounds.getBounds();
             }
             return rect.y + (int) (rect.height *
-                    child.getAlignment(View.Y_AXIS));
+                                   child.getAlignment(View.Y_AXIS));
         }
         return getBaseline(child, bounds);
     }

core/src/main/java/com/github/weisj/darklaf/ui/internalframe/DarkInternalFrameTitlePane.java

@@ -66,11 +66,6 @@ public class DarkInternalFrameTitlePane extends BasicInternalFrameTitlePane {
         super(f);
     }
 
-    @Override
-    protected void installTitlePane() {
-        super.installTitlePane();
-    }
-
     @Override
     protected void addSubComponents() {
         super.addSubComponents();

core/src/main/java/com/github/weisj/darklaf/ui/label/DarkLabelUI.java

@@ -47,8 +47,8 @@ public class DarkLabelUI extends BasicLabelUI implements PropertyChangeListener
 
     private Color inactiveForeground;
     private Color cellForegroundNoFocus;
-    protected Rectangle paintIconR = new Rectangle();
+    protected final Rectangle paintIconR = new Rectangle();
-    protected Rectangle paintTextR = new Rectangle();
+    protected final Rectangle paintTextR = new Rectangle();
 
     public DarkLabelUI() {
         installUI(null);
@@ -107,10 +107,10 @@ public class DarkLabelUI extends BasicLabelUI implements PropertyChangeListener
                                     final int textX, final int textY) {
         int mnemIndex = l.getDisplayedMnemonicIndex();
         boolean focus = DarkUIUtil.hasFocus(l)
-            || DarkUIUtil.hasFocus(DarkUIUtil.getParentOfType(JTree.class, l))
+                        || DarkUIUtil.hasFocus(DarkUIUtil.getParentOfType(JTree.class, l))
-            || DarkUIUtil.hasFocus(DarkUIUtil.getParentOfType(JTable.class, l))
+                        || DarkUIUtil.hasFocus(DarkUIUtil.getParentOfType(JTable.class, l))
-            || DarkUIUtil.hasFocus(DarkUIUtil.getParentOfType(JList.class, l))
+                        || DarkUIUtil.hasFocus(DarkUIUtil.getParentOfType(JList.class, l))
-            || DarkUIUtil.getParentOfType(JPopupMenu.class, l) != null;
+                        || DarkUIUtil.getParentOfType(JPopupMenu.class, l) != null;
         if (DarkUIUtil.isInCell(l) && !focus) {
             g.setColor(cellForegroundNoFocus);
         } else {

core/src/main/java/com/github/weisj/darklaf/ui/list/DarkListCellFocusBorder.java

@@ -31,7 +31,7 @@ import java.awt.*;
 
 public class DarkListCellFocusBorder extends DarkCellBorder {
 
-    protected Color borderColor;
+    protected final Color borderColor;
 
     public DarkListCellFocusBorder() {
         borderColor = UIManager.getColor("List.focusBorderColor");

core/src/main/java/com/github/weisj/darklaf/ui/list/DarkListUIBridge.java

@@ -62,7 +62,7 @@ public class DarkListUIBridge extends BasicListUI {
      * The constant BASELINE_COMPONENT_KEY.
      */
     protected static final StringBuilder BASELINE_COMPONENT_KEY =
-            new StringBuilder("List.baselineComponent");
+        new StringBuilder("List.baselineComponent");
     /**
      * The bit relates to model changed property.
      */
@@ -295,20 +295,19 @@ public class DarkListUIBridge extends BasicListUI {
      * @param leadIndex    a lead index
      * @see #paint
      */
-    protected void paintCell(
+    protected void paintCell(final Graphics g,
-            final Graphics g,
+                             final int row,
-            final int row,
+                             final Rectangle rowBounds,
-            final Rectangle rowBounds,
+                             final ListCellRenderer cellRenderer,
-            final ListCellRenderer cellRenderer,
+                             final ListModel dataModel,
-            final ListModel dataModel,
+                             final ListSelectionModel selModel,
-            final ListSelectionModel selModel,
+                             final int leadIndex) {
-            final int leadIndex) {
         Object value = dataModel.getElementAt(row);
         boolean cellHasFocus = list.hasFocus() && (row == leadIndex);
         boolean isSelected = selModel.isSelectedIndex(row);
 
         Component rendererComponent =
-                cellRenderer.getListCellRendererComponent(list, value, row, isSelected, cellHasFocus);
+            cellRenderer.getListCellRendererComponent(list, value, row, isSelected, cellHasFocus);
 
         int cx = rowBounds.x;
         int cy = rowBounds.y;
@@ -356,11 +355,10 @@ public class DarkListUIBridge extends BasicListUI {
         int rowHeight = list.getFixedCellHeight();
         UIDefaults lafDefaults = UIManager.getLookAndFeelDefaults();
         Component renderer = (Component) lafDefaults.get(
-                BASELINE_COMPONENT_KEY);
+            BASELINE_COMPONENT_KEY);
         if (renderer == null) {
             @SuppressWarnings("unchecked")
-            ListCellRenderer<Object> lcr = (ListCellRenderer) UIManager.get(
+            ListCellRenderer<Object> lcr = (ListCellRenderer<Object>) UIManager.get("List.cellRenderer");
-                    "List.cellRenderer");
 
             // fix for 6711072 some LAFs like Nimbus do not provide this
             // UIManager key and we should not through a NPE here because of it
@@ -368,7 +366,7 @@ public class DarkListUIBridge extends BasicListUI {
                 lcr = new DefaultListCellRenderer();
             }
             renderer = lcr.getListCellRendererComponent(
-                    list, "a", -1, false, false);
+                list, "a", -1, false, false);
             lafDefaults.put(BASELINE_COMPONENT_KEY, renderer);
         }
         renderer.setFont(list.getFont());
@@ -383,7 +381,7 @@ public class DarkListUIBridge extends BasicListUI {
             rowHeight = renderer.getPreferredSize().height;
         }
         return renderer.getBaseline(Integer.MAX_VALUE, rowHeight) +
-                list.getInsets().top;
+               list.getInsets().top;
     }
 
     /**
@@ -394,7 +392,7 @@ public class DarkListUIBridge extends BasicListUI {
      * @since 1.6
      */
     public Component.BaselineResizeBehavior getBaselineResizeBehavior(
-            final JComponent c) {
+        final JComponent c) {
         super.getBaselineResizeBehavior(c);
         return Component.BaselineResizeBehavior.CONSTANT_ASCENT;
     }
@@ -652,7 +650,7 @@ public class DarkListUIBridge extends BasicListUI {
 
         if (list.getCellRenderer() == null) {
             @SuppressWarnings("unchecked")
-            ListCellRenderer<Object> tmp = (ListCellRenderer) (UIManager.get("List.cellRenderer"));
+            ListCellRenderer<Object> tmp = (ListCellRenderer<Object>) (UIManager.get("List.cellRenderer"));
             list.setCellRenderer(tmp);
         }
 
@@ -716,7 +714,7 @@ public class DarkListUIBridge extends BasicListUI {
      */
     public void installUI(final JComponent c) {
         @SuppressWarnings("unchecked")
-        JList<Object> tmp = (JList) c;
+        JList<Object> tmp = (JList<Object>) c;
         list = tmp;
 
         layoutOrientation = list.getLayoutOrientation();
@@ -755,12 +753,12 @@ public class DarkListUIBridge extends BasicListUI {
     InputMap getInputMap(final int condition) {
         if (condition == JComponent.WHEN_FOCUSED) {
             InputMap keyMap = (InputMap) DefaultLookup.get(
-                    list, this, "List.focusInputMap");
+                list, this, "List.focusInputMap");
             InputMap rtlKeyMap;
 
             if (isLeftToRight ||
-                    ((rtlKeyMap = (InputMap) DefaultLookup.get(list, this,
+                ((rtlKeyMap = (InputMap) DefaultLookup.get(list, this,
-                                                               "List.focusInputMap.RightToLeft")) == null)) {
+                                                           "List.focusInputMap.RightToLeft")) == null)) {
                 return keyMap;
             } else {
                 rtlKeyMap.setParent(keyMap);
@@ -1204,10 +1202,10 @@ public class DarkListUIBridge extends BasicListUI {
         switch (layoutOrientation) {
             case JList.VERTICAL_WRAP:
                 return Math.min(list.getModel().getSize() - 1, rowsPerColumn *
-                        column + Math.min(row, rowsPerColumn - 1));
+                                                               column + Math.min(row, rowsPerColumn - 1));
             case JList.HORIZONTAL_WRAP:
                 return Math.min(list.getModel().getSize() - 1, row * columnCount +
-                        column);
+                                                               column);
             default:
                 return row;
         }
@@ -1262,7 +1260,7 @@ public class DarkListUIBridge extends BasicListUI {
             rowsPerColumn = visRows;
             columnCount = Math.max(1, dataModelSize / rowsPerColumn);
             if (dataModelSize > 0 && dataModelSize > rowsPerColumn &&
-                    dataModelSize % rowsPerColumn != 0) {
+                dataModelSize % rowsPerColumn != 0) {
                 columnCount++;
             }
             if (layoutOrientation == JList.HORIZONTAL_WRAP) {
@@ -1275,23 +1273,23 @@ public class DarkListUIBridge extends BasicListUI {
             }
         } else if (layoutOrientation == JList.VERTICAL_WRAP && height != 0) {
             rowsPerColumn = Math.max(1, (listHeight - insets.top -
-                    insets.bottom) / height);
+                                         insets.bottom) / height);
             columnCount = Math.max(1, dataModelSize / rowsPerColumn);
             if (dataModelSize > 0 && dataModelSize > rowsPerColumn &&
-                    dataModelSize % rowsPerColumn != 0) {
+                dataModelSize % rowsPerColumn != 0) {
                 columnCount++;
             }
         } else if (layoutOrientation == JList.HORIZONTAL_WRAP && cellWidth > 0 &&
-                listWidth > 0) {
+                   listWidth > 0) {
             columnCount = Math.max(1, (listWidth - insets.left -
-                    insets.right) / cellWidth);
+                                       insets.right) / cellWidth);
             rowsPerColumn = dataModelSize / columnCount;
             if (dataModelSize % columnCount > 0) {
                 rowsPerColumn++;
             }
         }
         preferredHeight = rowsPerColumn * cellHeight + insets.top +
-                insets.bottom;
+                          insets.bottom;
     }
 
     /**
@@ -1336,11 +1334,11 @@ public class DarkListUIBridge extends BasicListUI {
             startColumn = convertLocationToColumn(paintBounds.x,
                                                   paintBounds.y);
             endColumn = convertLocationToColumn(paintBounds.x +
-                                                        paintBounds.width,
+                                                paintBounds.width,
                                                 paintBounds.y);
         } else {
             startColumn = convertLocationToColumn(paintBounds.x +
-                                                          paintBounds.width,
+                                                  paintBounds.width,
                                                   paintBounds.y);
             endColumn = convertLocationToColumn(paintBounds.x,
                                                 paintBounds.y);
@@ -1364,7 +1362,7 @@ public class DarkListUIBridge extends BasicListUI {
                 return;
             }
             while (row < rowCount && rowBounds.y < maxY &&
-                    index < size) {
+                   index < size) {
                 rowBounds.height = getHeight(colCounter, row);
                 g.setClip(rowBounds.x, rowBounds.y, rowBounds.width,
                           rowBounds.height);
@@ -1431,22 +1429,19 @@ public class DarkListUIBridge extends BasicListUI {
             return -1;
         }
         if (layoutOrientation == JList.VERTICAL ||
-                (column == 0 && columnCount == 1)) {
+            (column == 0 && columnCount == 1)) {
             return list.getModel().getSize();
         }
-        if (column >= columnCount) {
-            return -1;
-        }
         if (layoutOrientation == JList.VERTICAL_WRAP) {
             if (column < (columnCount - 1)) {
                 return rowsPerColumn;
             }
             return list.getModel().getSize() - (columnCount - 1) *
-                    rowsPerColumn;
+                                               rowsPerColumn;
         }
         // JList.HORIZONTAL_WRAP
         int diff = columnCount - (columnCount * rowsPerColumn -
-                list.getModel().getSize());
+                                  list.getModel().getSize());
 
         if (column >= diff) {
             return Math.max(0, rowsPerColumn - 1);
@@ -1527,7 +1522,7 @@ public class DarkListUIBridge extends BasicListUI {
             if (index == size) {
                 decr = true;
             } else if (index != 0 && convertModelToRow(index)
-                    != convertModelToRow(index - 1)) {
+                                     != convertModelToRow(index - 1)) {
 
                 Rectangle prev = getCellBounds(list, index - 1);
                 Rectangle me = getCellBounds(list, index);
@@ -1537,16 +1532,16 @@ public class DarkListUIBridge extends BasicListUI {
                     decr = Point2D.distance(prev.x + prev.width,
                                             prev.y + (int) (prev.height / 2.0),
                                             p.x, p.y)
-                            < Point2D.distance(me.x,
+                           < Point2D.distance(me.x,
-                                               me.y + (int) (me.height / 2.0),
+                                              me.y + (int) (me.height / 2.0),
-                                               p.x, p.y);
+                                              p.x, p.y);
                 } else {
                     decr = Point2D.distance(prev.x,
                                             prev.y + (int) (prev.height / 2.0),
                                             p.x, p.y)
-                            < Point2D.distance(me.x + me.width,
+                           < Point2D.distance(me.x + me.width,
-                                               me.y + (int) (prev.height / 2.0),
+                                              me.y + (int) (prev.height / 2.0),
-                                               p.x, p.y);
+                                              p.x, p.y);
                 }
             }
 
@@ -1578,7 +1573,7 @@ public class DarkListUIBridge extends BasicListUI {
                 rect = getCellBounds(list, index);
                 rect.y += rect.height;
             } else if (index != 0 && convertModelToColumn(index)
-                    != convertModelToColumn(index - 1)) {
+                                     != convertModelToColumn(index - 1)) {
 
                 Rectangle prev = getCellBounds(list, index - 1);
                 Rectangle me = getCellBounds(list, index);
@@ -1586,9 +1581,9 @@ public class DarkListUIBridge extends BasicListUI {
                 if (Point2D.distance(prev.x + (int) (prev.width / 2.0),
                                      prev.y + prev.height,
                                      p.x, p.y)
-                        < Point2D.distance(me.x + (int) (me.width / 2.0),
+                    < Point2D.distance(me.x + (int) (me.width / 2.0),
-                                           me.y,
+                                       me.y,
-                                           p.x, p.y)) {
+                                       p.x, p.y)) {
 
                     index--;
                     rect = getCellBounds(list, index);
@@ -1638,7 +1633,7 @@ public class DarkListUIBridge extends BasicListUI {
         }
 
         if (layoutOrientation != JList.VERTICAL && columnCount > 1 &&
-                rowsPerColumn > 0) {
+            rowsPerColumn > 0) {
             if (layoutOrientation == JList.VERTICAL_WRAP) {
                 return index % rowsPerColumn;
             }
@@ -1713,7 +1708,7 @@ public class DarkListUIBridge extends BasicListUI {
         }
 
         if (layoutOrientation != JList.VERTICAL && rowsPerColumn > 0 &&
-                columnCount > 1) {
+            columnCount > 1) {
             if (layoutOrientation == JList.VERTICAL_WRAP) {
                 return index / rowsPerColumn;
             }
@@ -1742,7 +1737,7 @@ public class DarkListUIBridge extends BasicListUI {
         @SuppressWarnings("deprecation")
         protected Transferable createTransferable(final JComponent c) {
             if (c instanceof JList) {
-                JList<?> list = (JList) c;
+                JList<?> list = (JList<Object>) c;
                 Object[] values = list.getSelectedValues();
 
                 if (values == null || values.length == 0) {
@@ -1754,8 +1749,7 @@ public class DarkListUIBridge extends BasicListUI {
 
                 htmlStr.append("<html>\n<body>\n<ul>\n");
 
-                for (int i = 0; i < values.length; i++) {
+                for (Object obj : values) {
-                    Object obj = values[i];
                     String val = ((obj == null) ? "" : obj.toString());
                     plainStr.append(val).append('\n');
                     htmlStr.append("  <li>").append(val).append('\n');
@@ -1775,46 +1769,46 @@ public class DarkListUIBridge extends BasicListUI {
 
     private static class Actions extends UIAction {
         private static final String SELECT_PREVIOUS_COLUMN =
-                "selectPreviousColumn";
+            "selectPreviousColumn";
         private static final String SELECT_PREVIOUS_COLUMN_EXTEND =
-                "selectPreviousColumnExtendSelection";
+            "selectPreviousColumnExtendSelection";
         private static final String SELECT_PREVIOUS_COLUMN_CHANGE_LEAD =
-                "selectPreviousColumnChangeLead";
+            "selectPreviousColumnChangeLead";
         private static final String SELECT_NEXT_COLUMN = "selectNextColumn";
         private static final String SELECT_NEXT_COLUMN_EXTEND =
-                "selectNextColumnExtendSelection";
+            "selectNextColumnExtendSelection";
         private static final String SELECT_NEXT_COLUMN_CHANGE_LEAD =
-                "selectNextColumnChangeLead";
+            "selectNextColumnChangeLead";
         private static final String SELECT_PREVIOUS_ROW = "selectPreviousRow";
         private static final String SELECT_PREVIOUS_ROW_EXTEND =
-                "selectPreviousRowExtendSelection";
+            "selectPreviousRowExtendSelection";
         private static final String SELECT_PREVIOUS_ROW_CHANGE_LEAD =
-                "selectPreviousRowChangeLead";
+            "selectPreviousRowChangeLead";
         private static final String SELECT_NEXT_ROW = "selectNextRow";
         private static final String SELECT_NEXT_ROW_EXTEND =
-                "selectNextRowExtendSelection";
+            "selectNextRowExtendSelection";
         private static final String SELECT_NEXT_ROW_CHANGE_LEAD =
-                "selectNextRowChangeLead";
+            "selectNextRowChangeLead";
         private static final String SELECT_FIRST_ROW = "selectFirstRow";
         private static final String SELECT_FIRST_ROW_EXTEND =
-                "selectFirstRowExtendSelection";
+            "selectFirstRowExtendSelection";
         private static final String SELECT_FIRST_ROW_CHANGE_LEAD =
-                "selectFirstRowChangeLead";
+            "selectFirstRowChangeLead";
         private static final String SELECT_LAST_ROW = "selectLastRow";
         private static final String SELECT_LAST_ROW_EXTEND =
-                "selectLastRowExtendSelection";
+            "selectLastRowExtendSelection";
         private static final String SELECT_LAST_ROW_CHANGE_LEAD =
-                "selectLastRowChangeLead";
+            "selectLastRowChangeLead";
         private static final String SCROLL_UP = "scrollUp";
         private static final String SCROLL_UP_EXTEND =
-                "scrollUpExtendSelection";
+            "scrollUpExtendSelection";
         private static final String SCROLL_UP_CHANGE_LEAD =
-                "scrollUpChangeLead";
+            "scrollUpChangeLead";
         private static final String SCROLL_DOWN = "scrollDown";
         private static final String SCROLL_DOWN_EXTEND =
-                "scrollDownExtendSelection";
+            "scrollDownExtendSelection";
         private static final String SCROLL_DOWN_CHANGE_LEAD =
-                "scrollDownChangeLead";
+            "scrollDownChangeLead";
         private static final String SELECT_ALL = "selectAll";
         private static final String CLEAR_SELECTION = "clearSelection";
 
@@ -1920,7 +1914,7 @@ public class DarkListUIBridge extends BasicListUI {
                 clearSelection(list);
             } else if (Objects.equals(name, ADD_TO_SELECTION)) {
                 int index = adjustIndex(
-                        list.getSelectionModel().getLeadSelectionIndex(), list);
+                    list.getSelectionModel().getLeadSelectionIndex(), list);
 
                 if (!list.isSelectedIndex(index)) {
                     int oldAnchor = list.getSelectionModel().getAnchorSelectionIndex();
@@ -1931,7 +1925,7 @@ public class DarkListUIBridge extends BasicListUI {
                 }
             } else if (Objects.equals(name, TOGGLE_AND_ANCHOR)) {
                 int index = adjustIndex(
-                        list.getSelectionModel().getLeadSelectionIndex(), list);
+                    list.getSelectionModel().getLeadSelectionIndex(), list);
 
                 if (list.isSelectedIndex(index)) {
                     list.removeSelectionInterval(index, index);
@@ -1940,14 +1934,14 @@ public class DarkListUIBridge extends BasicListUI {
                 }
             } else if (Objects.equals(name, EXTEND_TO)) {
                 changeSelection(
-                        list, EXTEND_SELECTION,
+                    list, EXTEND_SELECTION,
-                        adjustIndex(list.getSelectionModel().getLeadSelectionIndex(), list),
+                    adjustIndex(list.getSelectionModel().getLeadSelectionIndex(), list),
-                        0);
+                    0);
             } else if (Objects.equals(name, MOVE_SELECTION_TO)) {
                 changeSelection(
-                        list, CHANGE_SELECTION,
+                    list, CHANGE_SELECTION,
-                        adjustIndex(list.getSelectionModel().getLeadSelectionIndex(), list),
+                    adjustIndex(list.getSelectionModel().getLeadSelectionIndex(), list),
-                        0);
+                    0);
             }
         }
 
@@ -1958,8 +1952,8 @@ public class DarkListUIBridge extends BasicListUI {
 
                 // CHANGE_LEAD is only valid with multiple interval selection
                 if (type == CHANGE_LEAD &&
-                        list.getSelectionMode()
+                    list.getSelectionMode()
-                                != ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) {
+                    != ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) {
 
                     type = CHANGE_SELECTION;
                 }
@@ -2056,13 +2050,13 @@ public class DarkListUIBridge extends BasicListUI {
             ListSelectionModel lsm = list.getSelectionModel();
             int lead = adjustIndex(lsm.getLeadSelectionIndex(), list);
             Rectangle leadRect =
-                    (lead == -1) ? new Rectangle() : list.getCellBounds(lead, lead);
+                (lead == -1) ? new Rectangle() : list.getCellBounds(lead, lead);
 
             if (leadRect == null) {
                 return index;
             }
             if (list.getLayoutOrientation() == JList.VERTICAL_WRAP &&
-                    list.getVisibleRowCount() <= 0) {
+                list.getVisibleRowCount() <= 0) {
                 if (!list.getComponentOrientation().isLeftToRight()) {
                     direction = -direction;
                 }
@@ -2158,8 +2152,8 @@ public class DarkListUIBridge extends BasicListUI {
                     // go up one cell if last visible cell doesn't fit
                     // into visible rectangle
                     if (cellBounds != null &&
-                            cellBounds.y + cellBounds.height >
+                        cellBounds.y + cellBounds.height >
-                                    visRect.y + visRect.height) {
+                        visRect.y + visRect.height) {
                         p.y = cellBounds.y - 1;
                         index = list.locationToIndex(p);
                         if (index == -1) {
@@ -2182,8 +2176,8 @@ public class DarkListUIBridge extends BasicListUI {
                         // go one cell up if last visible cell doesn't fit
                         // into adjasted visible rectangle
                         if (cellBounds != null &&
-                                cellBounds.y + cellBounds.height >
+                            cellBounds.y + cellBounds.height >
-                                        visRect.y + visRect.height) {
+                            visRect.y + visRect.height) {
                             p.y = cellBounds.y - 1;
                             index = list.locationToIndex(p);
                             if (index == -1) {
@@ -2250,7 +2244,7 @@ public class DarkListUIBridge extends BasicListUI {
             Rectangle visRect = list.getVisibleRect();
             if (cellBounds != null && !visRect.contains(cellBounds)) {
                 if (list.getLayoutOrientation() == JList.VERTICAL_WRAP &&
-                        list.getVisibleRowCount() <= 0) {
+                    list.getVisibleRowCount() <= 0) {
                     // horizontal
                     if (list.getComponentOrientation().isLeftToRight()) {
                         if (direction > 0) {
@@ -2258,17 +2252,17 @@ public class DarkListUIBridge extends BasicListUI {
                             int x = Math.max(0,
                                              cellBounds.x + cellBounds.width - visRect.width);
                             int startIndex =
-                                    list.locationToIndex(new Point(x, cellBounds.y));
+                                list.locationToIndex(new Point(x, cellBounds.y));
                             if (startIndex == -1) {
                                 return;
                             }
                             Rectangle startRect = list.getCellBounds(startIndex,
                                                                      startIndex);
                             if (startRect != null &&
-                                    startRect.x < x && startRect.x < cellBounds.x) {
+                                startRect.x < x && startRect.x < cellBounds.x) {
                                 startRect.x += startRect.width;
                                 startIndex =
-                                        list.locationToIndex(startRect.getLocation());
+                                    list.locationToIndex(startRect.getLocation());
                                 if (startIndex == -1) {
                                     return;
                                 }
@@ -2285,7 +2279,7 @@ public class DarkListUIBridge extends BasicListUI {
                             // left for right-to-left
                             int x = cellBounds.x + visRect.width;
                             int rightIndex =
-                                    list.locationToIndex(new Point(x, cellBounds.y));
+                                list.locationToIndex(new Point(x, cellBounds.y));
                             if (rightIndex == -1) {
                                 return;
                             }
@@ -2293,7 +2287,7 @@ public class DarkListUIBridge extends BasicListUI {
                                                                      rightIndex);
                             if (rightRect != null) {
                                 if (rightRect.x + rightRect.width > x &&
-                                        rightRect.x > cellBounds.x) {
+                                    rightRect.x > cellBounds.x) {
                                     rightRect.width = 0;
                                 }
                                 cellBounds.x = Math.max(0,
@@ -2311,29 +2305,29 @@ public class DarkListUIBridge extends BasicListUI {
                 } else {
                     // vertical
                     if (direction > 0 &&
-                            (cellBounds.y < visRect.y ||
+                        (cellBounds.y < visRect.y ||
-                                    cellBounds.y + cellBounds.height
+                         cellBounds.y + cellBounds.height
-                                            > visRect.y + visRect.height)) {
+                         > visRect.y + visRect.height)) {
                         //down
                         int y = Math.max(0,
                                          cellBounds.y + cellBounds.height - visRect.height);
                         int startIndex =
-                                list.locationToIndex(new Point(cellBounds.x, y));
+                            list.locationToIndex(new Point(cellBounds.x, y));
                         if (startIndex == -1) {
                             return;
                         }
                         Rectangle startRect = list.getCellBounds(startIndex,
                                                                  startIndex);
                         if (startRect != null &&
-                                startRect.y < y && startRect.y < cellBounds.y) {
+                            startRect.y < y && startRect.y < cellBounds.y) {
                             startRect.y += startRect.height;
                             startIndex =
-                                    list.locationToIndex(startRect.getLocation());
+                                list.locationToIndex(startRect.getLocation());
                             if (startIndex == -1) {
                                 return;
                             }
                             startRect =
-                                    list.getCellBounds(startIndex, startIndex);
+                                list.getCellBounds(startIndex, startIndex);
                         }
                         cellBounds = startRect;
                         if (cellBounds != null) {
@@ -2359,18 +2353,18 @@ public class DarkListUIBridge extends BasicListUI {
         public boolean accept(final Object c) {
             Object name = getName();
             if (name == SELECT_PREVIOUS_COLUMN_CHANGE_LEAD ||
-                    name == SELECT_NEXT_COLUMN_CHANGE_LEAD ||
+                name == SELECT_NEXT_COLUMN_CHANGE_LEAD ||
-                    name == SELECT_PREVIOUS_ROW_CHANGE_LEAD ||
+                name == SELECT_PREVIOUS_ROW_CHANGE_LEAD ||
-                    name == SELECT_NEXT_ROW_CHANGE_LEAD ||
+                name == SELECT_NEXT_ROW_CHANGE_LEAD ||
-                    name == SELECT_FIRST_ROW_CHANGE_LEAD ||
+                name == SELECT_FIRST_ROW_CHANGE_LEAD ||
-                    name == SELECT_LAST_ROW_CHANGE_LEAD ||
+                name == SELECT_LAST_ROW_CHANGE_LEAD ||
-                    name == SCROLL_UP_CHANGE_LEAD ||
+                name == SCROLL_UP_CHANGE_LEAD ||
-                    name == SCROLL_DOWN_CHANGE_LEAD) {
+                name == SCROLL_DOWN_CHANGE_LEAD) {
 
                 // discontinuous selection actions are only enabled for
                 // DefaultListSelectionModel
-                return c != null && ((JList) c).getSelectionModel()
+                return c != null && ((JList<Object>) c).getSelectionModel()
-                        instanceof DefaultListSelectionModel;
+                    instanceof DefaultListSelectionModel;
             }
 
             return true;
@@ -2526,9 +2520,9 @@ public class DarkListUIBridge extends BasicListUI {
      * The type Handler.
      */
     protected class Handler implements FocusListener, KeyListener,
-            ListDataListener, ListSelectionListener,
+                                       ListDataListener, ListSelectionListener,
-            MouseInputListener, PropertyChangeListener,
+                                       MouseInputListener, PropertyChangeListener,
-            DragRecognitionSupport.BeforeDrag {
+                                       DragRecognitionSupport.BeforeDrag {
         /**
          * The Prefix.
          */
@@ -2562,12 +2556,12 @@ public class DarkListUIBridge extends BasicListUI {
          * letters followed by first typed another letter.
          */
         public void keyTyped(final KeyEvent e) {
-            JList<?> src = (JList) e.getSource();
+            JList<?> src = (JList<?>) e.getSource();
             ListModel<?> model = src.getModel();
 
             if (model.getSize() == 0 || e.isAltDown() ||
-                    DarkUIUtil.isMenuShortcutKeyDown(e) ||
+                DarkUIUtil.isMenuShortcutKeyDown(e) ||
-                    isNavigationKey(e)) {
+                isNavigationKey(e)) {
                 // Nothing to select
                 return;
             }
@@ -2657,8 +2651,8 @@ public class DarkListUIBridge extends BasicListUI {
              * listDataListener from the old model and add it to the new one.
              */
             if (Objects.equals(propertyName, "model")) {
-                ListModel<?> oldModel = (ListModel) e.getOldValue();
+                ListModel<?> oldModel = (ListModel<?>) e.getOldValue();
-                ListModel<?> newModel = (ListModel) e.getNewValue();
+                ListModel<?> newModel = (ListModel<?>) e.getNewValue();
                 if (oldModel != null) {
                     oldModel.removeListDataListener(listDataListener);
                 }
@@ -2687,7 +2681,7 @@ public class DarkListUIBridge extends BasicListUI {
                 updateLayoutStateNeeded |= cellRendererChanged;
                 redrawList();
             } else if (Objects.equals(propertyName, PropertyKey.FONT)
-                || DarkSwingUtil.isScaleChanged(e)) {
+                       || DarkSwingUtil.isScaleChanged(e)) {
                 updateLayoutStateNeeded |= fontChanged;
                 redrawList();
             } else if (Objects.equals(propertyName, "prototypeCellValue")) {
@@ -2880,8 +2874,8 @@ public class DarkListUIBridge extends BasicListUI {
                 // If shift is down in multi-select, we should do nothing.
                 // For single select or non-shift-click, clear the selection
                 if (isFileList && e.getID() == MouseEvent.MOUSE_PRESSED &&
-                        (!e.isShiftDown() ||
+                    (!e.isShiftDown() ||
-                                list.getSelectionMode() == ListSelectionModel.SINGLE_SELECTION)) {
+                     list.getSelectionMode() == ListSelectionModel.SINGLE_SELECTION)) {
                     list.clearSelection();
                 }
             } else {

core/src/main/java/com/github/weisj/darklaf/ui/menu/DarkMenuBarBorder.java

@@ -34,7 +34,7 @@ import java.awt.*;
  */
 public class DarkMenuBarBorder implements Border, UIResource {
 
-    protected Color borderColor;
+    protected final Color borderColor;
 
     public DarkMenuBarBorder() {
         borderColor = UIManager.getColor("MenuBar.borderColor");

core/src/main/java/com/github/weisj/darklaf/ui/menu/DarkMenuItemUIBase.java

@@ -23,11 +23,7 @@
  */
 package com.github.weisj.darklaf.ui.menu;
 
-import com.github.weisj.darklaf.util.DarkUIUtil;
+import com.github.weisj.darklaf.util.*;
-import com.github.weisj.darklaf.util.GraphicsContext;
-import com.github.weisj.darklaf.util.GraphicsUtil;
-import com.github.weisj.darklaf.util.LazyActionMap;
-import com.github.weisj.darklaf.util.StringUtil;
 import sun.swing.MenuItemLayoutHelper;
 import sun.swing.SwingUtilities2;
 import sun.swing.UIAction;
@@ -79,7 +75,7 @@ public class DarkMenuItemUIBase extends BasicMenuItemUI {
         ButtonModel model = lh.getMenuItem().getModel();
         if (model.isEnabled()) {
             accRect.x = lh.getViewRect().x + lh.getViewRect().width
-                    - lh.getMenuItem().getIconTextGap() - lr.getAccRect().width;
+                        - lh.getMenuItem().getIconTextGap() - lr.getAccRect().width;
         }
     }
 
@@ -98,9 +94,11 @@ public class DarkMenuItemUIBase extends BasicMenuItemUI {
         DarkUIUtil.applyInsets(viewRect, mi.getInsets());
 
         MenuItemLayoutHelper lh = new MenuItemLayoutHelper(mi, checkIcon,
-                                                           arrowIcon, viewRect, defaultTextIconGap, acceleratorDelimiter,
+                                                           arrowIcon, viewRect, defaultTextIconGap,
+                                                           acceleratorDelimiter,
                                                            mi.getComponentOrientation().isLeftToRight(), mi.getFont(),
-                                                           acceleratorFont, MenuItemLayoutHelper.useCheckAndArrow(menuItem),
+                                                           acceleratorFont,
+                                                           MenuItemLayoutHelper.useCheckAndArrow(menuItem),
                                                            getPropertyPrefix());
         MenuItemLayoutHelper.LayoutResult lr = lh.layoutMenuItem();
 
@@ -123,7 +121,7 @@ public class DarkMenuItemUIBase extends BasicMenuItemUI {
         if (lh.getCheckIcon() != null) {
             ButtonModel model = lh.getMenuItem().getModel();
             if (model.isArmed() || (lh.getMenuItem() instanceof JMenu
-                    && model.isSelected())) {
+                                    && model.isSelected())) {
                 g.setColor(foreground);
             } else {
                 g.setColor(holdc);
@@ -163,7 +161,7 @@ public class DarkMenuItemUIBase extends BasicMenuItemUI {
             } else {
                 // *** paint the accText normally
                 if (model.isArmed()
-                        || (lh.getMenuItem() instanceof JMenu
+                    || (lh.getMenuItem() instanceof JMenu
                         && model.isSelected())) {
                     g.setColor(acceleratorSelectionForeground);
                 } else {
@@ -171,7 +169,7 @@ public class DarkMenuItemUIBase extends BasicMenuItemUI {
                 }
                 SwingUtilities2.drawString(lh.getMenuItem(), g, lh.getAccText(),
                                            lr.getAccRect().x, lr.getAccRect().y +
-                                                   lh.getAccFontMetrics().getAscent());
+                                                              lh.getAccFontMetrics().getAscent());
             }
         }
         config.restore();
@@ -222,7 +220,7 @@ public class DarkMenuItemUIBase extends BasicMenuItemUI {
         if (lh.getArrowIcon() != null) {
             ButtonModel model = lh.getMenuItem().getModel();
             if (model.isArmed() || (lh.getMenuItem() instanceof JMenu
-                    && model.isSelected())) {
+                                    && model.isSelected())) {
                 g.setColor(foreground);
             }
             if (lh.useCheckAndArrow()) {
@@ -250,7 +248,7 @@ public class DarkMenuItemUIBase extends BasicMenuItemUI {
             }
             g.setColor(oldColor);
         } else if (model.isArmed() || (menuItem instanceof JMenu &&
-                model.isSelected())) {
+                                       model.isSelected())) {
             g.setColor(bgColor);
             g.fillRect(0, 0, menuWidth, menuHeight);
             g.setColor(oldColor);

core/src/main/java/com/github/weisj/darklaf/ui/menu/DarkMenuUI.java

@@ -122,7 +122,7 @@ public class DarkMenuUI extends BasicMenuUI {
 
     protected Icon getArrowIcon() {
         boolean hover = menuItem.getModel().isArmed()
-                || (menuItem instanceof JMenu && menuItem.getModel().isSelected());
+                        || (menuItem instanceof JMenu && menuItem.getModel().isSelected());
         return hover ? arrowIconHover : arrowIcon;
     }
 
@@ -137,7 +137,7 @@ public class DarkMenuUI extends BasicMenuUI {
         ButtonModel model = lh.getMenuItem().getModel();
         if (model.isEnabled()) {
             accRect.x = lh.getViewRect().x + lh.getViewRect().width
-                    - lh.getMenuItem().getIconTextGap() - lr.getAccRect().width;
+                        - lh.getMenuItem().getIconTextGap() - lr.getAccRect().width;
         }
     }
 
@@ -156,9 +156,11 @@ public class DarkMenuUI extends BasicMenuUI {
         DarkUIUtil.applyInsets(viewRect, mi.getInsets());
 
         MenuItemLayoutHelper lh = new MenuItemLayoutHelper(mi, checkIcon,
-                                                           arrowIcon, viewRect, defaultTextIconGap, acceleratorDelimiter,
+                                                           arrowIcon, viewRect, defaultTextIconGap,
+                                                           acceleratorDelimiter,
                                                            mi.getComponentOrientation().isLeftToRight(), mi.getFont(),
-                                                           acceleratorFont, MenuItemLayoutHelper.useCheckAndArrow(menuItem),
+                                                           acceleratorFont,
+                                                           MenuItemLayoutHelper.useCheckAndArrow(menuItem),
                                                            getPropertyPrefix());
         MenuItemLayoutHelper.LayoutResult lr = lh.layoutMenuItem();
 
@@ -181,7 +183,7 @@ public class DarkMenuUI extends BasicMenuUI {
         if (lh.getCheckIcon() != null) {
             ButtonModel model = lh.getMenuItem().getModel();
             if (model.isArmed() || (lh.getMenuItem() instanceof JMenu
-                    && model.isSelected())) {
+                                    && model.isSelected())) {
                 g.setColor(foreground);
             } else {
                 g.setColor(holdc);
@@ -221,7 +223,7 @@ public class DarkMenuUI extends BasicMenuUI {
             } else {
                 // *** paint the accText normally
                 if (model.isArmed()
-                        || (lh.getMenuItem() instanceof JMenu
+                    || (lh.getMenuItem() instanceof JMenu
                         && model.isSelected())) {
                     g.setColor(acceleratorSelectionForeground);
                 } else {
@@ -229,7 +231,7 @@ public class DarkMenuUI extends BasicMenuUI {
                 }
                 SwingUtilities2.drawString(lh.getMenuItem(), g, lh.getAccText(),
                                            lr.getAccRect().x, lr.getAccRect().y +
-                                                   lh.getAccFontMetrics().getAscent());
+                                                              lh.getAccFontMetrics().getAscent());
             }
         }
         config.restore();
@@ -280,7 +282,7 @@ public class DarkMenuUI extends BasicMenuUI {
         if (lh.getArrowIcon() != null) {
             ButtonModel model = lh.getMenuItem().getModel();
             if (model.isArmed() || (lh.getMenuItem() instanceof JMenu
-                    && model.isSelected())) {
+                                    && model.isSelected())) {
                 g.setColor(foreground);
             }
             if (lh.useCheckAndArrow()) {
@@ -308,7 +310,7 @@ public class DarkMenuUI extends BasicMenuUI {
             }
             g.setColor(oldColor);
         } else if (model.isArmed() || (menuItem instanceof JMenu &&
-                model.isSelected())) {
+                                       model.isSelected())) {
             g.setColor(bgColor);
             g.fillRect(0, 0, menuWidth, menuHeight);
             g.setColor(oldColor);

core/src/main/java/com/github/weisj/darklaf/ui/numberingpane/DarkNumberingPaneUI.java

@@ -202,14 +202,16 @@ public class DarkNumberingPaneUI extends ComponentUI {
                 g.setColor(lineRect.y == yCur ? foregroundHighlight : numberingPane.getForeground());
                 g.drawString(String.format("%1$" + digits + "d", i), OUTER_PAD,
                              lineRect.y + lineRect.height - descent);
-            } catch (BadLocationException ignored) { }
+            } catch (BadLocationException ignored) {
+            }
         }
         config.restore();
     }
 
     protected void paintIcons(final Graphics g, final int startLine, final int endLine, final Element root) {
-        List<Map.Entry<Position, Icon>> icons = numberingPane.getIconsInRange(root.getElement(startLine).getStartOffset(),
+        List<Map.Entry<Position, Icon>> icons = numberingPane.getIconsInRange(
-                                                                              root.getElement(endLine).getEndOffset());
+            root.getElement(startLine).getStartOffset(),
+            root.getElement(endLine).getEndOffset());
         for (Map.Entry<Position, Icon> icon : icons) {
             Rectangle lineRect;
             try {
@@ -264,7 +266,8 @@ public class DarkNumberingPaneUI extends ComponentUI {
                                 listener.iconClicked(e);
                             }
                         }
-                    } catch (BadLocationException ignored) { }
+                    } catch (BadLocationException ignored) {
+                    }
                 }
                 IndexListener[] list = numberingPane.getIndexListeners();
                 for (IndexListener listener : list) {

core/src/main/java/com/github/weisj/darklaf/ui/optionpane/DarkOptionPaneUI.java

@@ -38,11 +38,6 @@ public class DarkOptionPaneUI extends BasicOptionPaneUI {
         return new DarkOptionPaneUI();
     }
 
-    @Override
-    protected LayoutManager createLayoutManager() {
-        return super.createLayoutManager();
-    }
-
     @Override
     protected Container createButtonArea() {
         JPanel bottom = new JPanel();
@@ -228,12 +223,12 @@ public class DarkOptionPaneUI extends BasicOptionPaneUI {
                             x = insets.left;
                             if (getSyncAllWidths()) {
                                 xOffset = (container.getWidth() - insets.left -
-                                        insets.right - totalButtonWidth) /
+                                           insets.right - totalButtonWidth) /
-                                        (numChildren - 1) + maxWidth;
+                                          (numChildren - 1) + maxWidth;
                             } else {
                                 xOffset = (container.getWidth() - insets.left -
-                                        insets.right - totalButtonWidth) /
+                                           insets.right - totalButtonWidth) /
-                                        (numChildren - 1);
+                                          (numChildren - 1);
                             }
                         }
                         break;
@@ -280,7 +275,7 @@ public class DarkOptionPaneUI extends BasicOptionPaneUI {
                             maxWidth = Math.max(maxWidth, aSize.width);
                         }
                         return new Dimension(extraWidth + (maxWidth * numChildren) +
-                                                     (numChildren - 1) * padding,
+                                             (numChildren - 1) * padding,
                                              extraHeight + height);
                     } else {
                         int totalWidth = 0;

core/src/main/java/com/github/weisj/darklaf/ui/popupmenu/DarkPopupMenuBorder.java

@@ -40,7 +40,8 @@ public class DarkPopupMenuBorder extends MutableLineBorder implements UIResource
     }
 
     @Override
-    public void paintBorder(final Component c, final Graphics g, final int x, final int y, final int width, final int height) {
+    public void paintBorder(final Component c, final Graphics g, final int x, final int y, final int width,
+                            final int height) {
         setColor(UIManager.getDefaults().getColor("PopupMenu.borderColor"));
         super.paintBorder(c, g, x, y, width, height);
     }

core/src/main/java/com/github/weisj/darklaf/ui/popupmenu/DarkPopupMenuUI.java

@@ -112,7 +112,7 @@ public class DarkPopupMenuUI extends BasicPopupMenuUI {
     }
 
     public static class MouseGrabber implements ChangeListener,
-        AWTEventListener, ComponentListener, WindowListener {
+                                                AWTEventListener, ComponentListener, WindowListener {
 
         Window grabbedWindow;
         MenuElement[] lastPathSelected;
@@ -133,13 +133,13 @@ public class DarkPopupMenuUI extends BasicPopupMenuUI {
                 (PrivilegedAction<Object>) () -> {
                     tk.addAWTEventListener(MouseGrabber.this,
                                            AWTEvent.MOUSE_EVENT_MASK
-                                               | AWTEvent.MOUSE_MOTION_EVENT_MASK
+                                           | AWTEvent.MOUSE_MOTION_EVENT_MASK
-                                               | AWTEvent.MOUSE_WHEEL_EVENT_MASK
+                                           | AWTEvent.MOUSE_WHEEL_EVENT_MASK
-                                               | AWTEvent.WINDOW_EVENT_MASK
+                                           | AWTEvent.WINDOW_EVENT_MASK
-                                               | SunToolkit.GRAB_EVENT_MASK);
+                                           | SunToolkit.GRAB_EVENT_MASK);
-                        return null;
+                    return null;
-                    }
+                }
-            );
+                                                       );
 
             Component invoker = newPath[0].getComponent();
             if (invoker instanceof JPopupMenu) {
@@ -174,7 +174,7 @@ public class DarkPopupMenuUI extends BasicPopupMenuUI {
                     tk.removeAWTEventListener(MouseGrabber.this);
                     return null;
                 }
-            );
+                                                       );
             realUngrabWindow();
         }
 
@@ -308,7 +308,7 @@ public class DarkPopupMenuUI extends BasicPopupMenuUI {
                 } else if (c instanceof JPopupMenu) {
                     return true;
                 } else if (c instanceof JComponent
-                    && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_DO_NOT_CANCEL_ON_SCROLL))) {
+                           && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_DO_NOT_CANCEL_ON_SCROLL))) {
                     /*
                      * Change here: allows scrollable components that contain the popupMenu.
                      */

core/src/main/java/com/github/weisj/darklaf/ui/progressbar/DarkProgressBarUI.java

@@ -146,13 +146,15 @@ public class DarkProgressBarUI extends BasicProgressBarUI implements PropertyCha
                     shape = getShapedRect(r.x, yOffset, r.width, pHeight, pHeight);
                     yOffset = r.y + pHeight / 2;
                     g2.setPaint(new GradientPaint(r.x + getAnimationIndex() * step * 2, yOffset, startColor,
-                                                  r.x + getFrameCount() * step + getAnimationIndex() * step * 2, yOffset,
+                                                  r.x + getFrameCount() * step + getAnimationIndex() * step * 2,
+                                                  yOffset,
                                                   endColor, true));
                 } else {
                     shape = getShapedRect(xOffset, r.y, pWidth, r.height, pWidth);
                     xOffset = r.x + pWidth / 2;
                     g2.setPaint(new GradientPaint(xOffset, r.y + getAnimationIndex() * step * 2, startColor,
-                                                  xOffset, r.y + getFrameCount() * step + getAnimationIndex() * step * 2,
+                                                  xOffset,
+                                                  r.y + getFrameCount() * step + getAnimationIndex() * step * 2,
                                                   endColor, true));
                 }
                 g2.fill(shape);
@@ -180,7 +182,8 @@ public class DarkProgressBarUI extends BasicProgressBarUI implements PropertyCha
     @Override
     protected void installDefaults() {
         super.installDefaults();
-        UIManager.put("ProgressBar.repaintInterval", isSimplified() ? REPAINT_INTERVAL_SIMPLIFIED : REPAINT_INTERVAL_DEFAULT);
+        UIManager.put("ProgressBar.repaintInterval",
+                      isSimplified() ? REPAINT_INTERVAL_SIMPLIFIED : REPAINT_INTERVAL_DEFAULT);
         UIManager.put("ProgressBar.cycleTime", isSimplified() ? CYCLE_TIME_SIMPLIFIED : CYCLE_TIME_DEFAULT);
         trackColor = UIManager.getColor("ProgressBar.trackColor");
         progressColor = UIManager.getColor("ProgressBar.progressColor");

core/src/main/java/com/github/weisj/darklaf/ui/rootpane/DarkRootPaneUI.java

@@ -55,7 +55,7 @@ public class DarkRootPaneUI extends BasicRootPaneUI implements HierarchyListener
     private LayoutManager layoutManager;
     private LayoutManager oldLayout;
     private JRootPane rootPane;
-    private DisposeListener disposeListener = new DisposeListener();
+    private final DisposeListener disposeListener = new DisposeListener();
 
     private boolean decorationStyleLock = false;
     private int windowDecorationsStyle = -1;

core/src/main/java/com/github/weisj/darklaf/ui/rootpane/DarkSubstanceRootLayout.java

@@ -126,9 +126,9 @@ class DarkSubstanceRootLayout implements LayoutManager2 {
             }
         }
         if ((root.getWindowDecorationStyle() != JRootPane.NONE)
-                && (root.getUI() instanceof DarkRootPaneUI)) {
+            && (root.getUI() instanceof DarkRootPaneUI)) {
             JComponent titlePane = ((DarkRootPaneUI) root.getUI())
-                    .getTitlePane();
+                .getTitlePane();
             if (titlePane != null) {
                 tpd = titlePane.getMinimumSize();
                 if (tpd != null) {
@@ -139,8 +139,8 @@ class DarkSubstanceRootLayout implements LayoutManager2 {
         }
 
         return new Dimension(Math.max(Math.max(cpWidth, mbWidth), tpWidth)
-                                 + i.left + i.right, cpHeight + mbHeight + tpHeight + i.top
+                             + i.left + i.right, cpHeight + mbHeight + tpHeight + i.top
-                                 + i.bottom);
+                                                 + i.bottom);
     }
 
     protected CustomTitlePane getTitlePane(final JRootPane root) {
@@ -212,9 +212,9 @@ class DarkSubstanceRootLayout implements LayoutManager2 {
         }
 
         if ((root.getWindowDecorationStyle() != JRootPane.NONE)
-                && (root.getUI() instanceof DarkRootPaneUI)) {
+            && (root.getUI() instanceof DarkRootPaneUI)) {
             JComponent titlePane = ((DarkRootPaneUI) root.getUI())
-                    .getTitlePane();
+                .getTitlePane();
             if (titlePane != null) {
                 tpd = titlePane.getMaximumSize();
                 if (tpd != null) {

core/src/main/java/com/github/weisj/darklaf/ui/scrollpane/DarkScrollBarListener.java

@@ -43,10 +43,10 @@ public class DarkScrollBarListener extends MouseAdapter implements AdjustmentLis
     protected final JScrollBar scrollbar;
     private final DarkScrollBarUI ui;
 
-    private Animator trackFadeoutAnimator;
+    private final Animator trackFadeoutAnimator;
-    private Animator trackFadeinAnimator;
+    private final Animator trackFadeinAnimator;
-    private Animator thumbFadeoutAnimator;
+    private final Animator thumbFadeoutAnimator;
-    private Animator thumbFadeinAnimator;
+    private final Animator thumbFadeinAnimator;
 
     protected boolean mouseOverThumb = false;
     protected boolean mouseOverTrack = false;
@@ -183,7 +183,7 @@ public class DarkScrollBarListener extends MouseAdapter implements AdjustmentLis
     }
 
     protected void resetAnimators(final Animator fadeInAnimator, final Animator fadeOutAnimator,
-                                final boolean overAnimatedComponent, final float currentAlpha, final float maxAlpha) {
+                                  final boolean overAnimatedComponent, final float currentAlpha, final float maxAlpha) {
         fadeInAnimator.reset();
         fadeOutAnimator.reset();
         if (scrollbar != null && (scrollbar.getValueIsAdjusting() || overAnimatedComponent)) {
@@ -221,7 +221,8 @@ public class DarkScrollBarListener extends MouseAdapter implements AdjustmentLis
 
     protected class TrackFadeOutAnimator extends Animator {
         public TrackFadeOutAnimator() {
-            super("Track fadeout", DarkScrollBarListener.FADEOUT_FRAMES_COUNT, DarkScrollBarListener.FADEOUT_FRAMES_COUNT * DarkScrollBarListener.FADEOUT_FRAME_COUNT_FACTOR, false);
+            super("Track fadeout", DarkScrollBarListener.FADEOUT_FRAMES_COUNT,
+                  DarkScrollBarListener.FADEOUT_FRAMES_COUNT * DarkScrollBarListener.FADEOUT_FRAME_COUNT_FACTOR, false);
         }
 
         public void paintNow(final int frame, final int totalFrames, final int cycle) {
@@ -245,7 +246,8 @@ public class DarkScrollBarListener extends MouseAdapter implements AdjustmentLis
 
     protected class ThumbFadeInAnimator extends Animator {
         public ThumbFadeInAnimator() {
-            super("Thumb fadein", DarkScrollBarListener.FADEIN_FRAMES_COUNT / 2, DarkScrollBarListener.FADEIN_FRAMES_COUNT * DarkScrollBarListener.FADEIN_FRAME_COUNT_FACTOR, false);
+            super("Thumb fadein", DarkScrollBarListener.FADEIN_FRAMES_COUNT / 2,
+                  DarkScrollBarListener.FADEIN_FRAMES_COUNT * DarkScrollBarListener.FADEIN_FRAME_COUNT_FACTOR, false);
         }
 
         @Override
@@ -273,7 +275,8 @@ public class DarkScrollBarListener extends MouseAdapter implements AdjustmentLis
 
     protected class TrackFadeInAnimator extends Animator {
         public TrackFadeInAnimator() {
-            super("Track fadein", DarkScrollBarListener.FADEIN_FRAMES_COUNT, DarkScrollBarListener.FADEIN_FRAMES_COUNT * DarkScrollBarListener.FADEIN_FRAME_COUNT_FACTOR, false);
+            super("Track fadein", DarkScrollBarListener.FADEIN_FRAMES_COUNT,
+                  DarkScrollBarListener.FADEIN_FRAMES_COUNT * DarkScrollBarListener.FADEIN_FRAME_COUNT_FACTOR, false);
         }
 
         public void paintNow(final int frame, final int totalFrames, final int cycle) {
@@ -294,7 +297,8 @@ public class DarkScrollBarListener extends MouseAdapter implements AdjustmentLis
 
     protected class ThumbFadeOutAnimator extends Animator {
         public ThumbFadeOutAnimator() {
-            super("Adjustment fadeout", DarkScrollBarListener.FADEOUT_FRAMES_COUNT, DarkScrollBarListener.FADEOUT_FRAMES_COUNT * DarkScrollBarListener.FADEOUT_FRAME_COUNT_FACTOR, false);
+            super("Adjustment fadeout", DarkScrollBarListener.FADEOUT_FRAMES_COUNT,
+                  DarkScrollBarListener.FADEOUT_FRAMES_COUNT * DarkScrollBarListener.FADEOUT_FRAME_COUNT_FACTOR, false);
         }
 
         @Override

core/src/main/java/com/github/weisj/darklaf/ui/scrollpane/DarkScrollPaneUI.java

@@ -45,7 +45,7 @@ public class DarkScrollPaneUI extends BasicScrollPaneUI {
         JScrollBar scrollbar = scrollpane.getHorizontalScrollBar();
         scrollbar.setValueIsAdjusting(true);
         ScrollBarUtil.doScroll(scrollbar, scrollpane.getViewport(), e,
-                                 scrollpane.getComponentOrientation().isLeftToRight());
+                               scrollpane.getComponentOrientation().isLeftToRight());
         scrollbar.setValueIsAdjusting(false);
     };
     private final MouseWheelListener horizontalMouseWheelListener = e -> {
@@ -55,7 +55,7 @@ public class DarkScrollPaneUI extends BasicScrollPaneUI {
         JScrollBar scrollbar = scrollpane.getVerticalScrollBar();
         scrollbar.setValueIsAdjusting(true);
         ScrollBarUtil.doScroll(scrollbar, scrollpane.getViewport(), e,
-                                 scrollpane.getComponentOrientation().isLeftToRight());
+                               scrollpane.getComponentOrientation().isLeftToRight());
         scrollbar.setValueIsAdjusting(false);
     };
     private final MouseWheelListener mouseWheelListener = e -> {
@@ -66,7 +66,7 @@ public class DarkScrollPaneUI extends BasicScrollPaneUI {
                                                : scrollpane.getVerticalScrollBar();
         scrollbar.setValueIsAdjusting(true);
         ScrollBarUtil.doScroll(scrollbar, scrollpane.getViewport(), e,
-                                 scrollpane.getComponentOrientation().isLeftToRight());
+                               scrollpane.getComponentOrientation().isLeftToRight());
         scrollbar.setValueIsAdjusting(false);
     };
     private final PropertyChangeListener propertyChangeListener = e -> {

core/src/main/java/com/github/weisj/darklaf/ui/scrollpane/ScrollBarUtil.java

@@ -144,10 +144,10 @@ public class ScrollBarUtil implements ScrollBarConstants {
         if (limitToBlock) {
             if (direction < 0) {
                 limit = scrollbar.getValue() -
-                    scrollbar.getBlockIncrement(direction);
+                        scrollbar.getBlockIncrement(direction);
             } else {
                 limit = scrollbar.getValue() +
-                    scrollbar.getBlockIncrement(direction);
+                        scrollbar.getBlockIncrement(direction);
             }
         }
 

core/src/main/java/com/github/weisj/darklaf/ui/slider/DarkSliderUI.java

@@ -112,7 +112,7 @@ public class DarkSliderUI extends BasicSliderUI implements PropertyChangeListene
 
     private static boolean showVolumeIcon(final JComponent c) {
         return isVolumeSlider(c)
-            && Boolean.TRUE.equals(c.getClientProperty(KEY_SHOW_VOLUME_ICON));
+               && Boolean.TRUE.equals(c.getClientProperty(KEY_SHOW_VOLUME_ICON));
     }
 
     private static boolean isVolumeSlider(final JComponent c) {
@@ -413,10 +413,10 @@ public class DarkSliderUI extends BasicSliderUI implements PropertyChangeListene
         int w = showVolumeIcon(slider) ? trackRect.width + getIconBarExt() : trackRect.width;
         if (slider.getComponentOrientation().isLeftToRight()) {
             return new Area(new RoundRectangle2D.Double(
-                    trackRect.x, trackRect.y + yOff, w, trackSize, arc, arc));
+                trackRect.x, trackRect.y + yOff, w, trackSize, arc, arc));
         } else {
             return new Area(new RoundRectangle2D.Double(
-                    trackRect.x - getIconBarExt(), trackRect.y + yOff, w, trackSize, arc, arc));
+                trackRect.x - getIconBarExt(), trackRect.y + yOff, w, trackSize, arc, arc));
         }
     }
 
@@ -437,10 +437,10 @@ public class DarkSliderUI extends BasicSliderUI implements PropertyChangeListene
         int h = showVolumeIcon(slider) ? trackRect.height + getIconBarExt() : trackRect.height;
         if (slider.getComponentOrientation().isLeftToRight()) {
             return new Area(new RoundRectangle2D.Double(
-                    trackRect.x + xOff, trackRect.y, trackSize, h, arc, arc));
+                trackRect.x + xOff, trackRect.y, trackSize, h, arc, arc));
         } else {
             return new Area(new RoundRectangle2D.Double(
-                    trackRect.x + xOff, trackRect.y - getIconBarExt(), trackSize, h, arc, arc));
+                trackRect.x + xOff, trackRect.y - getIconBarExt(), trackSize, h, arc, arc));
 
         }
     }
@@ -474,7 +474,7 @@ public class DarkSliderUI extends BasicSliderUI implements PropertyChangeListene
     protected boolean isPlainThumb() {
         Boolean paintThumbArrowShape = (Boolean) slider.getClientProperty(KEY_THUMB_ARROW_SHAPE);
         return (!slider.getPaintTicks() && paintThumbArrowShape == null) ||
-            paintThumbArrowShape == Boolean.FALSE;
+               paintThumbArrowShape == Boolean.FALSE;
     }
 
     private void paintSliderThumb(final Graphics2D g) {
@@ -641,9 +641,9 @@ public class DarkSliderUI extends BasicSliderUI implements PropertyChangeListene
             if (tickSpacing != 0) {
                 if ((value - slider.getMinimum()) % tickSpacing != 0) {
                     float temp = (float) (value - slider.getMinimum())
-                            / (float) tickSpacing;
+                                 / (float) tickSpacing;
                     snappedValue = slider.getMinimum() +
-                            (Math.round(temp) * tickSpacing);
+                                   (Math.round(temp) * tickSpacing);
                 }
             }
             return snappedValue;

core/src/main/java/com/github/weisj/darklaf/ui/spinner/DarkSpinnerBorder.java

@@ -38,11 +38,11 @@ import java.awt.*;
  */
 public class DarkSpinnerBorder implements Border, UIResource {
 
-    protected Color focusBorderColor;
+    protected final Color focusBorderColor;
-    protected Color borderColor;
+    protected final Color borderColor;
-    protected Color inactiveBorderColor;
+    protected final Color inactiveBorderColor;
-    protected int arc;
+    protected final int arc;
-    protected int borderSize;
+    protected final int borderSize;
     protected Insets insets;
     protected Insets cellInsets;
 

core/src/main/java/com/github/weisj/darklaf/ui/spinner/DarkSpinnerListener.java

@@ -64,7 +64,7 @@ public class DarkSpinnerListener extends MouseAdapter implements PropertyChangeL
     @Override
     public void propertyChange(final PropertyChangeEvent evt) {
         String key = evt.getPropertyName();
-        Component editorComponent= ui.getEditorComponent();
+        Component editorComponent = ui.getEditorComponent();
         JComponent editor = ui.getEditor();
         if (PropertyKey.OPAQUE.equals(key)) {
             boolean val = Boolean.TRUE.equals(evt.getNewValue());

core/src/main/java/com/github/weisj/darklaf/ui/spinner/SpinnerConstants.java

@@ -45,11 +45,11 @@ public interface SpinnerConstants {
 
     static boolean isTreeCellEditor(final Component c) {
         return c instanceof JComponent
-            && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_IS_TREE_EDITOR));
+               && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_IS_TREE_EDITOR));
     }
 
     static boolean isTableCellEditor(final Component c) {
         return c instanceof JComponent
-            && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_IS_TABLE_EDITOR));
+               && Boolean.TRUE.equals(((JComponent) c).getClientProperty(KEY_IS_TABLE_EDITOR));
     }
 }

core/src/main/java/com/github/weisj/darklaf/ui/splitpane/DarkSplitPaneDivider.java

@@ -37,13 +37,13 @@ import java.awt.*;
  */
 public class DarkSplitPaneDivider extends BasicSplitPaneDivider {
 
-    protected Icon leftOneTouch;
+    protected final Icon leftOneTouch;
-    protected Icon rightOneTouch;
+    protected final Icon rightOneTouch;
-    protected Icon topOneTouch;
+    protected final Icon topOneTouch;
-    protected Icon bottomOneTouch;
+    protected final Icon bottomOneTouch;
-    protected Icon verticalSplit;
+    protected final Icon verticalSplit;
-    protected Icon horizontalSplit;
+    protected final Icon horizontalSplit;
-    protected Color borderColor;
+    protected final Color borderColor;
 
     public DarkSplitPaneDivider(final BasicSplitPaneUI ui) {
         super(ui);

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/DarkHandler.java

@@ -36,7 +36,7 @@ import java.beans.PropertyChangeEvent;
 
 public class DarkHandler extends TabbedPaneHandler {
 
-    protected DarkTabbedPaneUI ui;
+    protected final DarkTabbedPaneUI ui;
 
     protected Point origin;
     protected Point tabOrigin;

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/DarkScrollableTabPanel.java

@@ -29,7 +29,7 @@ class DarkScrollableTabPanel extends ScrollableTabPanel {
 
     protected final Rectangle iconRect = new Rectangle();
     protected final Rectangle textRect = new Rectangle();
-    private DarkTabbedPaneUI ui;
+    private final DarkTabbedPaneUI ui;
 
     public DarkScrollableTabPanel(final DarkTabbedPaneUI ui) {
         super(ui);
@@ -79,7 +79,8 @@ class DarkScrollableTabPanel extends ScrollableTabPanel {
     public void paint(final Graphics g) {
         super.paint(g);
         if (ui.dragging && ui.tabPane.getTabCount() > 0) {
-            ui.paintTab(g, ui.tabPane.getTabPlacement(), ui.dragRect, ui.tabPane.getSelectedIndex(), iconRect, textRect);
+            ui.paintTab(g, ui.tabPane.getTabPlacement(), ui.dragRect, ui.tabPane.getSelectedIndex(), iconRect,
+                        textRect);
             Component comp = ui.tabPane.getTabComponentAt(ui.dropSourceIndex);
             if (comp != null) {
                 g.translate(comp.getX(), comp.getY());

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/DarkScrollableTabSupport.java

@@ -43,7 +43,7 @@ public class DarkScrollableTabSupport extends ScrollableTabSupport implements Mo
     protected final JComponent newTabButton;
     protected final Timer timer;
     protected long lastClickEvent;
-    private DarkTabbedPaneUI ui;
+    private final DarkTabbedPaneUI ui;
 
     public DarkScrollableTabSupport(final DarkTabbedPaneUI ui, final int tabPlacement) {
         super(ui);
@@ -59,7 +59,8 @@ public class DarkScrollableTabSupport extends ScrollableTabSupport implements Mo
         moreTabsButton.addActionListener(this);
 
         newTabButton = ui.createNewTabButton();
-        newTabButton.setVisible(Boolean.TRUE.equals(ui.tabPane.getClientProperty(DarkTabbedPaneUI.KEY_SHOW_NEW_TAB_BUTTON)));
+        newTabButton.setVisible(
+            Boolean.TRUE.equals(ui.tabPane.getClientProperty(DarkTabbedPaneUI.KEY_SHOW_NEW_TAB_BUTTON)));
 
         scrollPopupMenu = new ScrollPopupMenu(UIManager.getInt(DarkTabbedPaneUI.KEY_MAX_POPUP_HEIGHT));
         PopupMenuListener popupMenuListener = new PopupMenuAdapter() {
@@ -165,7 +166,7 @@ public class DarkScrollableTabSupport extends ScrollableTabSupport implements Mo
         int shift;
         if (horizontal) {
             int rightMargin = size.width - (insets.left + insets.right
-                    + tabAreaInsets.right + tabAreaInsets.left);
+                                            + tabAreaInsets.right + tabAreaInsets.left);
             if (moreTabsButton.isVisible()) {
                 rightMargin -= moreTabsButton.getWidth();
             }
@@ -182,7 +183,7 @@ public class DarkScrollableTabSupport extends ScrollableTabSupport implements Mo
             ui.scrollShiftX += shift;
         } else {
             int bottomMargin = size.height - (insets.bottom + tabAreaInsets.bottom
-                    + insets.top + tabAreaInsets.top);
+                                              + insets.top + tabAreaInsets.top);
             if (moreTabsButton.isVisible()) {
                 bottomMargin -= moreTabsButton.getHeight();
             }

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/DarkTabAreaButton.java

@@ -29,7 +29,7 @@ import java.awt.*;
 
 public class DarkTabAreaButton extends JButton implements UIResource {
 
-    private DarkTabbedPaneUI ui;
+    private final DarkTabbedPaneUI ui;
 
     public DarkTabAreaButton(final DarkTabbedPaneUI ui) {
         this.ui = ui;

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/DarkTabbedPaneLayout.java

@@ -28,7 +28,7 @@ import java.awt.*;
 
 public class DarkTabbedPaneLayout extends TabbedPaneLayout {
 
-    private DarkTabbedPaneUI ui;
+    private final DarkTabbedPaneUI ui;
 
     public DarkTabbedPaneLayout(final DarkTabbedPaneUI ui) {
         super(ui);
@@ -72,7 +72,7 @@ public class DarkTabbedPaneLayout extends TabbedPaneLayout {
         //
         if (selectedComponent != null) {
             if (selectedComponent != visibleComponent &&
-                    visibleComponent != null) {
+                visibleComponent != null) {
                 Component owner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
                 if (owner != null && SwingUtilities.isDescendingFrom(owner, visibleComponent)) {
                     shouldChangeFocus = true;
@@ -94,7 +94,7 @@ public class DarkTabbedPaneLayout extends TabbedPaneLayout {
                     cx = insets.left + tw + contentInsets.left + tabAreaInsets.left + tabAreaInsets.right;
                     cy = insets.top + contentInsets.top;
                     cw = bounds.width - insets.left - insets.right - contentInsets.left - contentInsets.right - tw
-                            - tabAreaInsets.left - tabAreaInsets.right;
+                         - tabAreaInsets.left - tabAreaInsets.right;
                     ch = bounds.height - insets.top - insets.bottom - contentInsets.top - contentInsets.bottom;
                     break;
                 case SwingConstants.RIGHT:
@@ -105,7 +105,7 @@ public class DarkTabbedPaneLayout extends TabbedPaneLayout {
                     cx = insets.left + contentInsets.left;
                     cy = insets.top + contentInsets.top;
                     cw = bounds.width - insets.left - insets.right - contentInsets.left - contentInsets.right - tw
-                            - tabAreaInsets.left - tabAreaInsets.right;
+                         - tabAreaInsets.left - tabAreaInsets.right;
                     ch = bounds.height - insets.top - insets.bottom - contentInsets.top - contentInsets.bottom;
                     break;
                 case SwingConstants.BOTTOM:
@@ -127,7 +127,7 @@ public class DarkTabbedPaneLayout extends TabbedPaneLayout {
                     cy = insets.top + th + contentInsets.top + tabAreaInsets.top + tabAreaInsets.bottom;
                     cw = bounds.width - insets.left - insets.right - contentInsets.left - contentInsets.right;
                     ch = bounds.height - th - insets.top - insets.bottom - contentInsets.top - contentInsets.bottom
-                            - tabAreaInsets.top - tabAreaInsets.bottom;
+                         - tabAreaInsets.top - tabAreaInsets.bottom;
                     break;
             }
 

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/DarkTabbedPaneScrollLayout.java

@@ -29,7 +29,7 @@ import java.util.function.Function;
 
 public class DarkTabbedPaneScrollLayout extends TabbedPaneScrollLayout {
 
-    private DarkTabbedPaneUI ui;
+    private final DarkTabbedPaneUI ui;
 
     public DarkTabbedPaneScrollLayout(final DarkTabbedPaneUI ui) {
         super(ui);
@@ -71,7 +71,7 @@ public class DarkTabbedPaneScrollLayout extends TabbedPaneScrollLayout {
         //
         if (selectedComponent != null) {
             if (selectedComponent != visibleComponent &&
-                    visibleComponent != null) {
+                visibleComponent != null) {
 
                 Component owner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
                 if (owner != null && SwingUtilities.isDescendingFrom(owner, visibleComponent)) {
@@ -96,7 +96,7 @@ public class DarkTabbedPaneScrollLayout extends TabbedPaneScrollLayout {
                     cx = insets.left + tw + contentInsets.left + tabAreaInsets.left + tabAreaInsets.right;
                     cy = insets.top + contentInsets.top;
                     cw = bounds.width - insets.left - insets.right - tw - contentInsets.left - contentInsets.right
-                            - tabAreaInsets.left - tabAreaInsets.right;
+                         - tabAreaInsets.left - tabAreaInsets.right;
                     ch = bounds.height - insets.top - insets.bottom - contentInsets.top - contentInsets.bottom;
                     tw -= tabAreaInsets.left + tabAreaInsets.right;
                     break;
@@ -313,7 +313,7 @@ public class DarkTabbedPaneScrollLayout extends TabbedPaneScrollLayout {
                                    : new Rectangle(0, 0, 0, 0);
         if (!verticalTabRuns) {
             int rightMargin = size.width - (insets.right + tabAreaInsets.right
-                    + insets.left + tabAreaInsets.left);
+                                            + insets.left + tabAreaInsets.left);
             Point p = getMargins(tabPlacement);
             int leftMargin = p.x;
             int returnAt = p.y;
@@ -360,7 +360,7 @@ public class DarkTabbedPaneScrollLayout extends TabbedPaneScrollLayout {
 
         } else {
             int bottomMargin = size.height - (insets.bottom + tabAreaInsets.bottom
-                    + insets.top + tabAreaInsets.top);
+                                              + insets.top + tabAreaInsets.top);
             Point p = getMargins(tabPlacement);
             int topMargin = p.x;
             int returnAt = p.y;
@@ -413,7 +413,7 @@ public class DarkTabbedPaneScrollLayout extends TabbedPaneScrollLayout {
         if (ui.isHorizontalTabPlacement()) {
             int leftMargin = 0;
             int returnAt = size.width - (insets.right + tabAreaInsets.right
-                    + insets.left + tabAreaInsets.left);
+                                         + insets.left + tabAreaInsets.left);
             if (tabsButton.isVisible()) {
                 returnAt -= tabsButton.getPreferredSize().width;
             }
@@ -424,7 +424,7 @@ public class DarkTabbedPaneScrollLayout extends TabbedPaneScrollLayout {
         } else {
             int topMargin = 0;
             int returnAt = size.height - (insets.bottom + tabAreaInsets.bottom
-                    + insets.top + tabAreaInsets.top);
+                                          + insets.top + tabAreaInsets.top);
             if (tabsButton.isVisible()) {
                 returnAt -= tabsButton.getPreferredSize().height;
             }
@@ -570,7 +570,8 @@ public class DarkTabbedPaneScrollLayout extends TabbedPaneScrollLayout {
 
     protected void restoreHiddenTabsY(final int minY, final int maxY, final int tabCount) {
         if (ui.maxVisible < 0 || ui.maxVisible >= tabCount) return;
-        int space = Math.max(maxY - ui.rects[ui.maxVisible].y - ui.rects[ui.maxVisible].height - ui.currentShiftYTmp, 0);
+        int space = Math.max(maxY - ui.rects[ui.maxVisible].y - ui.rects[ui.maxVisible].height - ui.currentShiftYTmp,
+                             0);
         int shift = Math.min(minY - ui.rects[0].y - ui.currentShiftYTmp, space);
         shiftTabsY(shift, minY, maxY, tabCount, true);
     }

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/DarkTabbedPaneUI.java

@@ -101,7 +101,7 @@ public class DarkTabbedPaneUI extends DarkTabbedPaneUIBridge {
     protected int focusSize;
 
     protected boolean dragging;
-    protected Rectangle dragRect = new Rectangle();
+    protected final Rectangle dragRect = new Rectangle();
 
     protected Color dragBorderColor;
     protected Color dropBackground;

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/DarkTabbedPaneUIBridge.java

@@ -303,7 +303,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
     protected void uninstallKeyboardActions() {
         SwingUtilities.replaceUIActionMap(tabPane, null);
         SwingUtilities.replaceUIInputMap(tabPane, JComponent.
-                                                 WHEN_ANCESTOR_OF_FOCUSED_COMPONENT,
+                                             WHEN_ANCESTOR_OF_FOCUSED_COMPONENT,
                                          null);
         SwingUtilities.replaceUIInputMap(tabPane, JComponent.WHEN_FOCUSED,
                                          null);
@@ -440,7 +440,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
                     return baseline;
                 case JTabbedPane.BOTTOM:
                     baseline = height - insets.bottom -
-                            tabAreaInsets.bottom - maxTabHeight + baseline;
+                               tabAreaInsets.bottom - maxTabHeight + baseline;
                     return baseline;
             }
         }
@@ -455,7 +455,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
      * @since 1.6
      */
     public Component.BaselineResizeBehavior getBaselineResizeBehavior(
-            final JComponent c) {
+        final JComponent c) {
         super.getBaselineResizeBehavior(c);
         switch (tabPane.getTabPlacement()) {
             case JTabbedPane.LEFT:
@@ -508,7 +508,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
         int tabCount = tabPane.getTabCount();
 
         Rectangle iconRect = new Rectangle(),
-                textRect = new Rectangle();
+            textRect = new Rectangle();
         Rectangle clipRect = g.getClipBounds();
 
         // Paint tabRuns of tabs from back to front
@@ -812,7 +812,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
         Rectangle tabRect = rects[tabIndex];
         String propKey = (isSelected ? "selectedLabelShift" : "labelShift");
         int nudge = DefaultLookup.getInt(
-                tabPane, this, "TabbedPane." + propKey, 1);
+            tabPane, this, "TabbedPane." + propKey, 1);
 
         switch (tabPlacement) {
             case LEFT:
@@ -950,10 +950,10 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
      */
     protected void installKeyboardActions() {
         InputMap km = getInputMap(JComponent.
-                                          WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
+                                      WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
 
         SwingUtilities.replaceUIInputMap(tabPane, JComponent.
-                                                 WHEN_ANCESTOR_OF_FOCUSED_COMPONENT,
+                                             WHEN_ANCESTOR_OF_FOCUSED_COMPONENT,
                                          km);
         km = getInputMap(JComponent.WHEN_FOCUSED);
         SwingUtilities.replaceUIInputMap(tabPane, JComponent.WHEN_FOCUSED, km);
@@ -1063,7 +1063,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
         mnemonicInputMap.put(KeyStroke.getKeyStroke(mnemonic, DarkUIUtil.getFocusAcceleratorKeyMask()),
                              "setSelectedIndex");
         mnemonicInputMap.put(KeyStroke.getKeyStroke(mnemonic, InputEvent.ALT_GRAPH_DOWN_MASK
-                                     | DarkUIUtil.getFocusAcceleratorKeyMask()),
+                                                              | DarkUIUtil.getFocusAcceleratorKeyMask()),
                              "setSelectedIndex");
         mnemonicToIndexMap.put(mnemonic, index);
     }
@@ -1253,16 +1253,16 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
             Insets tabInsets = getTabInsets(tabPane.getTabPlacement(), tab);
             int cellHeight = maxTabHeight - tabInsets.top - tabInsets.bottom;
             return c.getBaseline(pref.width, pref.height) +
-                    (cellHeight - pref.height) / 2 + tabInsets.top;
+                   (cellHeight - pref.height) / 2 + tabInsets.top;
         } else {
             View view = getTextViewForTab(tab);
             if (view != null) {
                 int viewHeight = (int) view.getPreferredSpan(View.Y_AXIS);
                 int baseline = BasicHTML.getHTMLBaseline(
-                        view, (int) view.getPreferredSpan(View.X_AXIS), viewHeight);
+                    view, (int) view.getPreferredSpan(View.X_AXIS), viewHeight);
                 if (baseline >= 0) {
                     return maxTabHeight / 2 - viewHeight / 2 + baseline +
-                            getBaselineOffset();
+                           getBaselineOffset();
                 }
                 return -1;
             }
@@ -1271,7 +1271,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
         int fontHeight = metrics.getHeight();
         int fontBaseline = metrics.getAscent();
         return maxTabHeight / 2 - fontHeight / 2 + fontBaseline +
-                getBaselineOffset();
+               getBaselineOffset();
     }
 
     /**
@@ -1621,7 +1621,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
         int tabRunOverlay = getTabRunOverlay(tabPlacement);
         return (horizRunCount > 0 ?
                 horizRunCount * (maxTabHeight - tabRunOverlay) + tabRunOverlay +
-                        tabAreaInsets.top + tabAreaInsets.bottom :
+                tabAreaInsets.top + tabAreaInsets.bottom :
                 0);
     }
 
@@ -1638,7 +1638,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
         int tabRunOverlay = getTabRunOverlay(tabPlacement);
         return (vertRunCount > 0 ?
                 vertRunCount * (maxTabWidth - tabRunOverlay) + tabRunOverlay +
-                        tabAreaInsets.left + tabAreaInsets.right :
+                tabAreaInsets.left + tabAreaInsets.right :
                 0);
     }
 
@@ -2215,9 +2215,9 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
      */
     protected void setVisibleComponent(final Component component) {
         if (visibleComponent != null
-                && visibleComponent != component
+            && visibleComponent != component
-                && visibleComponent.getParent() == tabPane
+            && visibleComponent.getParent() == tabPane
-                && visibleComponent.isVisible()) {
+            && visibleComponent.isVisible()) {
 
             visibleComponent.setVisible(false);
         }
@@ -2271,7 +2271,7 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
          * The Request focus for visible.
          */
         static final String REQUEST_FOCUS_FOR_VISIBLE =
-                "requestFocusForVisibleComponent";
+            "requestFocusForVisibleComponent";
         /**
          * The Set selected.
          */
@@ -2302,8 +2302,8 @@ public abstract class DarkTabbedPaneUIBridge extends TabbedPaneUI implements Swi
             String key = getName();
             JTabbedPane pane = (JTabbedPane) e.getSource();
             DarkTabbedPaneUIBridge ui = (DarkTabbedPaneUIBridge) DarkUIUtil
-                    .getUIOfType(pane.getUI(),
+                .getUIOfType(pane.getUI(),
-                                 DarkTabbedPaneUIBridge.class);
+                             DarkTabbedPaneUIBridge.class);
 
             if (ui == null) {
                 return;

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/MoreTabsButton.java

@@ -35,7 +35,7 @@ public class MoreTabsButton extends DarkTabAreaButton {
 
     protected final static String INFINITY = "\u221e";
     protected final Icon icon;
-    protected DarkTabbedPaneUI ui;
+    protected final DarkTabbedPaneUI ui;
     protected final int pad;
 
     public MoreTabsButton(final DarkTabbedPaneUI ui) {
@@ -87,7 +87,8 @@ public class MoreTabsButton extends DarkTabAreaButton {
 
 
     protected String getLabelString() {
-        int invisible = Math.min(ui.minVisible - 1 + ui.tabPane.getTabCount() - ui.maxVisible, ui.tabPane.getTabCount());
+        int invisible = Math.min(ui.minVisible - 1 + ui.tabPane.getTabCount() - ui.maxVisible,
+                                 ui.tabPane.getTabCount());
         return invisible >= 100 ? INFINITY : String.valueOf(invisible);
     }
 

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/NewTabButton.java

@@ -33,7 +33,7 @@ import java.awt.*;
 public class NewTabButton extends JPanel implements UIResource {
 
     protected final JButton button;
-    protected DarkTabbedPaneUI ui;
+    protected final DarkTabbedPaneUI ui;
 
     protected NewTabButton(final DarkTabbedPaneUI ui) {
         this.ui = ui;

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/ScrollableTabPanel.java

@@ -28,7 +28,7 @@ import javax.swing.plaf.UIResource;
 import java.awt.*;
 
 public class ScrollableTabPanel extends JPanel implements UIResource {
-    private DarkTabbedPaneUIBridge ui;
+    private final DarkTabbedPaneUIBridge ui;
 
     public ScrollableTabPanel(final DarkTabbedPaneUIBridge ui) {
         super(null);

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/ScrollableTabSupport.java

@@ -46,9 +46,9 @@ class ScrollableTabSupport {
 
     public String toString() {
         return "viewport.viewSize=" + viewport.getViewSize() + "\n" +
-                "viewport.viewRectangle=" + viewport.getViewRect() + "\n" +
+               "viewport.viewRectangle=" + viewport.getViewRect() + "\n" +
-                "leadingTabIndex=" + leadingTabIndex + "\n" +
+               "leadingTabIndex=" + leadingTabIndex + "\n" +
-                "tabViewPosition=" + tabViewPosition;
+               "tabViewPosition=" + tabViewPosition;
     }
 
 }

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/ScrollableTabViewport.java

@@ -28,7 +28,7 @@ import javax.swing.plaf.UIResource;
 import java.awt.*;
 
 @SuppressWarnings("serial")
-        // Superclass is not serializable across versions
+    // Superclass is not serializable across versions
 class ScrollableTabViewport extends JViewport implements UIResource {
 
     public ScrollableTabViewport(final DarkTabbedPaneUIBridge ui) {

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/TabbedPaneHandler.java

@@ -39,7 +39,7 @@ import java.beans.PropertyChangeListener;
 import java.util.Objects;
 
 public class TabbedPaneHandler implements ChangeListener, ContainerListener, FocusListener,
-        MouseListener, MouseMotionListener, PropertyChangeListener {
+                                          MouseListener, MouseMotionListener, PropertyChangeListener {
     private final DarkTabbedPaneUIBridge ui;
 
     //
@@ -146,7 +146,7 @@ public class TabbedPaneHandler implements ChangeListener, ContainerListener, Foc
             int index = tabPane.getSelectedIndex();
             if (index < ui.rects.length && index != -1) {
                 ui.tabScroller.tabPanel.scrollRectToVisible(
-                        (Rectangle) ui.rects[index].clone());
+                    (Rectangle) ui.rects[index].clone());
             }
         }
     }

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/TabbedPaneLayout.java

@@ -102,7 +102,7 @@ public class TabbedPaneLayout implements LayoutManager {
         //
         if (selectedComponent != null) {
             if (selectedComponent != visibleComponent &&
-                    visibleComponent != null) {
+                visibleComponent != null) {
                 if (SwingUtilities.findFocusOwner(visibleComponent) != null) {
                     shouldChangeFocus = true;
                 }
@@ -139,11 +139,11 @@ public class TabbedPaneLayout implements LayoutManager {
             }
 
             cw = bounds.width - totalTabWidth -
-                    insets.left - insets.right -
+                 insets.left - insets.right -
-                    contentInsets.left - contentInsets.right;
+                 contentInsets.left - contentInsets.right;
             ch = bounds.height - totalTabHeight -
-                    insets.top - insets.bottom -
+                 insets.top - insets.bottom -
-                    contentInsets.top - contentInsets.bottom;
+                 contentInsets.top - contentInsets.bottom;
 
             for (int i = 0; i < numChildren; i++) {
                 Component child = ui.tabPane.getComponent(i);
@@ -151,10 +151,10 @@ public class TabbedPaneLayout implements LayoutManager {
 
                     int tabContainerWidth = totalTabWidth == 0 ? bounds.width :
                                             totalTabWidth + insets.left + insets.right +
-                                                    contentInsets.left + contentInsets.right;
+                                            contentInsets.left + contentInsets.right;
                     int tabContainerHeight = totalTabHeight == 0 ? bounds.height :
                                              totalTabHeight + insets.top + insets.bottom +
-                                                     contentInsets.top + contentInsets.bottom;
+                                             contentInsets.top + contentInsets.bottom;
 
                     int tabContainerX = 0;
                     int tabContainerY = 0;

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/TabbedPaneScrollLayout.java

@@ -123,7 +123,7 @@ abstract class TabbedPaneScrollLayout extends TabbedPaneLayout {
         // the bottom, flip x positions and adjust by widths
         if (!leftToRight && !verticalTabRuns) {
             int rightMargin = size.width
-                    - (insets.right + tabAreaInsets.right);
+                              - (insets.right + tabAreaInsets.right);
             for (i = 0; i < tabCount; i++) {
                 ui.rects[i].x = rightMargin - ui.rects[i].x - ui.rects[i].width;
             }

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/TabbedPaneTransferHandler.java

@@ -31,19 +31,7 @@ import java.awt.*;
 import java.awt.datatransfer.DataFlavor;
 import java.awt.datatransfer.Transferable;
 import java.awt.datatransfer.UnsupportedFlavorException;
-import java.awt.dnd.DragGestureEvent;
+import java.awt.dnd.*;
-import java.awt.dnd.DragGestureListener;
-import java.awt.dnd.DragGestureRecognizer;
-import java.awt.dnd.DragSource;
-import java.awt.dnd.DragSourceContext;
-import java.awt.dnd.DragSourceDragEvent;
-import java.awt.dnd.DragSourceDropEvent;
-import java.awt.dnd.DragSourceEvent;
-import java.awt.dnd.DragSourceListener;
-import java.awt.dnd.DropTargetDragEvent;
-import java.awt.dnd.DropTargetDropEvent;
-import java.awt.dnd.DropTargetEvent;
-import java.awt.dnd.DropTargetListener;
 import java.awt.event.InputEvent;
 import java.awt.event.MouseEvent;
 import java.lang.reflect.Field;
@@ -81,10 +69,10 @@ public class TabbedPaneTransferHandler extends TransferHandler implements DropTa
 
         // only mouse events supported for drag operations
         if (!(e instanceof MouseEvent)
-                // only support known actions
+            // only support known actions
-                || !(action == COPY || action == MOVE || action == LINK)
+            || !(action == COPY || action == MOVE || action == LINK)
-                // only support valid source actions
+            // only support valid source actions
-                || (srcActions & action) == 0) {
+            || (srcActions & action) == 0) {
 
             action = NONE;
         }
@@ -177,7 +165,7 @@ public class TabbedPaneTransferHandler extends TransferHandler implements DropTa
             createDragImage(tabPane, null);
         }
         if ((ui != null && !ui.scrollableTabLayoutEnabled())
-                || tabPane.getTabLayoutPolicy() == JTabbedPane.WRAP_TAB_LAYOUT) {
+            || tabPane.getTabLayoutPolicy() == JTabbedPane.WRAP_TAB_LAYOUT) {
             tabPane.setSelectedIndex(currentTransferable.transferData.tabIndex);
         }
         return currentTransferable;
@@ -260,7 +248,8 @@ public class TabbedPaneTransferHandler extends TransferHandler implements DropTa
                 }
                 Rectangle dropRect = TabbedPaneUtil.getDropRect(supportsIndicator(destTabbedPane), destTabbedPane,
                                                                 t.transferData.sourceTabbedPane, mouseLocation,
-                                                                t.getTabBounds(), tab, t.transferData.tabIndex, lastTab);
+                                                                t.getTabBounds(), tab, t.transferData.tabIndex,
+                                                                lastTab);
                 ui.setDnDIndicatorRect(dropRect.x, dropRect.y, dropRect.width, dropRect.height,
                                        tab, t.transferData.sourceTabbedPane == destTabbedPane);
                 lastTab = tab;

core/src/main/java/com/github/weisj/darklaf/ui/tabbedpane/TabbedPaneUtil.java

@@ -124,17 +124,19 @@ public class TabbedPaneUtil implements SwingConstants {
             calculateDropRectScrollLayout(destTabbedPane, source, tabBounds, tab, sourceIndex,
                                           lastTab, tabPlacement, destRect);
         } else {
-            calculateDropRectWrapLayout(ui, destTabbedPane, source, mouseLocation, tabBounds, tab, sourceIndex, destRect);
+            calculateDropRectWrapLayout(ui, destTabbedPane, source, mouseLocation, tabBounds, tab, sourceIndex,
+                                        destRect);
         }
         return tabBounds;
     }
 
     private static void calculateDropRectScrollLayout(final JTabbedPane destTabbedPane, final JTabbedPane source,
                                                       final Rectangle tabBounds, final int tab, final int sourceIndex,
-                                                      final int lastTab, final int tabPlacement, final Rectangle destRect) {
+                                                      final int lastTab, final int tabPlacement,
+                                                      final Rectangle destRect) {
         boolean lastInSource = false;
         if (destTabbedPane == source && (tab == sourceIndex || (sourceIndex == source.getTabCount() - 1
-                && tab == source.getTabCount()))) {
+                                                                && tab == source.getTabCount()))) {
             lastInSource = true;
             destRect.width = tabBounds.width;
             destRect.height = tabBounds.height;
@@ -207,7 +209,7 @@ public class TabbedPaneUtil implements SwingConstants {
                 tabBounds.width = Math.min(tabBounds.width / 2, destRect.width / 2);
             } else {
                 if (destRect.y + destRect.height <= mouseLocation.y
-                        && prev.y <= mouseLocation.y && mouseLocation.y <= prev.y + prev.height) {
+                    && prev.y <= mouseLocation.y && mouseLocation.y <= prev.y + prev.height) {
                     destRect.x = prev.x + prev.width;
                     destRect.y = prev.y;
                     destRect.height = prev.height;

core/src/main/java/com/github/weisj/darklaf/ui/tabframe/DarkPanelPopupUI.java

@@ -357,7 +357,8 @@ public class DarkPanelPopupUI extends DarkPanelUI implements PropertyChangeListe
             if (focusOwner instanceof JRootPane) return;
             boolean focus = DarkUIUtil.hasFocus(popupComponent);
             if (popupComponent.getTabFrame() != null) {
-                Container container = popupComponent.getTabFrame().getContentPane().getContainer(popupComponent.getAlignment());
+                Container container = popupComponent.getTabFrame().getContentPane().getContainer(
+                    popupComponent.getAlignment());
                 focus = focus || DarkUIUtil.hasFocus(container);
             }
             setHeaderBackground(focus);

core/src/main/java/com/github/weisj/darklaf/ui/tabframe/DarkTabFrameComponentPopupMenu.java

@@ -37,7 +37,7 @@ import java.beans.PropertyChangeListener;
 public class DarkTabFrameComponentPopupMenu extends JXPopupMenu implements PropertyChangeListener, UIResource {
 
     private final TabFrameTab tab;
-    private JMenuItem[] actions;
+    private final JMenuItem[] actions;
     private int disabled = -1;
 
     public DarkTabFrameComponentPopupMenu(final TabFrameTab tab) {

core/src/main/java/com/github/weisj/darklaf/ui/tabframe/DarkTabFrameTabLabelUI.java

@@ -66,7 +66,7 @@ public class DarkTabFrameTabLabelUI extends DarkLabelUI implements PropertyChang
     private Color selectedFontColor;
     private Color selectedColor;
     private Color hoverColor;
-    private RotatableIcon rotatableIcon = new RotatableIcon();
+    private final RotatableIcon rotatableIcon = new RotatableIcon();
     private boolean printing;
 
 

core/src/main/java/com/github/weisj/darklaf/ui/tabframe/DarkTabFrameUI.java

@@ -67,7 +67,7 @@ public class DarkTabFrameUI extends TabFrameUI implements AWTEventListener {
     private TabFrameLayout layout;
     private int tabHeight;
     private Color dragBorderColor;
-    private Dimension dropSize = new Dimension();
+    private final Dimension dropSize = new Dimension();
     private Alignment sourceAlign;
     private int sourceIndex;
     private Alignment destAlign;

core/src/main/java/com/github/weisj/darklaf/ui/tabframe/TabDragListener.java

@@ -52,6 +52,7 @@ public class TabDragListener extends MouseAdapter {
         origin = null;
     }
 
+    @SuppressWarnings("unchecked")
     @Override
     public void mouseDragged(final MouseEvent e) {
         if (origin == null) origin = e.getPoint();
@@ -60,7 +61,8 @@ public class TabDragListener extends MouseAdapter {
         if (th != null && tabComponent.getTabFrame().isDndEnabled()) {
             Point p = e.getPoint();
             p = SwingXUtilities.convertPointToParent(tabComponent.getComponent(), p);
-            JXLayer layer = DarkUIUtil.getParentOfType(JXLayer.class, tabComponent.getComponent());
+            JXLayer<? extends JComponent> layer = DarkUIUtil.getParentOfType(JXLayer.class,
+                                                                             tabComponent.getComponent());
             p = SwingUtilities.convertPoint(layer != null ? layer : tabComponent.getComponent().getParent(),
                                             p, tabComponent.getTabFrame());
             tabComponent.getTabFrame().initTransfer(tabComponent.getOrientation(), tabComponent.getIndex());

core/src/main/java/com/github/weisj/darklaf/ui/tabframe/TabFrameLayout.java

@@ -37,9 +37,9 @@ import java.util.Arrays;
 public class TabFrameLayout implements LayoutManager {
 
     private final JTabFrame tabFrame;
-    private DarkTabFrameUI ui;
+    private final DarkTabFrameUI ui;
-    private int[] shift;
+    private final int[] shift;
-    private boolean[] draggedOver;
+    private final boolean[] draggedOver;
     private int topHeight;
     private int leftHeight;
     private int rightHeight;
@@ -66,9 +66,9 @@ public class TabFrameLayout implements LayoutManager {
     public Dimension preferredLayoutSize(final Container parent) {
         Dimension b = tabFrame.getContentPane().getComponent().getPreferredSize();
         return new Dimension(tabFrame.getLeftTabContainer().getWidth()
-                                     + tabFrame.getRightTabContainer().getWidth() + b.width,
+                             + tabFrame.getRightTabContainer().getWidth() + b.width,
                              tabFrame.getTopTabContainer().getHeight()
-                                     + tabFrame.getBottomTabContainer().getHeight() + b.height);
+                             + tabFrame.getBottomTabContainer().getHeight() + b.height);
     }
 
 
@@ -76,9 +76,9 @@ public class TabFrameLayout implements LayoutManager {
     public Dimension minimumLayoutSize(final Container parent) {
         Dimension b = tabFrame.getContentPane().getComponent().getMinimumSize();
         return new Dimension(tabFrame.getLeftTabContainer().getWidth()
-                                     + tabFrame.getRightTabContainer().getWidth() + b.width,
+                             + tabFrame.getRightTabContainer().getWidth() + b.width,
                              tabFrame.getTopTabContainer().getHeight()
-                                     + tabFrame.getBottomTabContainer().getHeight() + b.height);
+                             + tabFrame.getBottomTabContainer().getHeight() + b.height);
     }
 
     @Override
@@ -230,7 +230,8 @@ public class TabFrameLayout implements LayoutManager {
             int size = rightSize > 0 ? rightHeight : tabFrame.getTabSize();
             int height = dim.height - topPane.getHeight() - bottomPane.getHeight();
             rightPane.setBounds(dim.width - rightHeight, topPane.getHeight(), size, height + (height % 2));
-            tabFrame.getRightTabContainer().setPreferredSize(new Dimension(rightPane.getHeight(), rightPane.getWidth()));
+            tabFrame.getRightTabContainer().setPreferredSize(
+                new Dimension(rightPane.getHeight(), rightPane.getWidth()));
             tabFrame.getRightTabContainer().setSize(tabFrame.getRightTabContainer().getPreferredSize());
             if (rightSize > 0) {
                 Point start = new Point(0, 0);

core/src/main/java/com/github/weisj/darklaf/ui/tabframe/TabFrameTransferHandler.java

@@ -46,7 +46,7 @@ import java.awt.event.MouseEvent;
 public class TabFrameTransferHandler extends TransferHandler implements DropTargetListener, SwingConstants {
 
     private static final String MIME_TYPE = DataFlavor.javaJVMLocalObjectMimeType
-            + ";class=com.github.weisj.darklaf.components.tabframe.JTabFrame";
+                                            + ";class=com.github.weisj.darklaf.components.tabframe.JTabFrame";
     private static TabbedPaneDragGestureRecognizer recognizer = null;
     private final Timer timer;
     private final Timer startTimer;
@@ -70,7 +70,8 @@ public class TabFrameTransferHandler extends TransferHandler implements DropTarg
             if (lastTabFrame != null) {
                 Point p = MouseInfo.getPointerInfo().getLocation();
                 SwingUtilities.convertPointFromScreen(p, lastTabFrame);
-                DropTargetDragEvent evt = new DropTargetDragEvent(lastTabFrame.getDropTarget().getDropTargetContext(), p, MOVE, MOVE);
+                DropTargetDragEvent evt = new DropTargetDragEvent(lastTabFrame.getDropTarget().getDropTargetContext(),
+                                                                  p, MOVE, MOVE);
                 dragOver(evt);
             }
         });
@@ -102,10 +103,10 @@ public class TabFrameTransferHandler extends TransferHandler implements DropTarg
 
         // only mouse events supported for drag operations
         if (!(e instanceof MouseEvent)
-                // only support known actions
+            // only support known actions
-                || !(action == COPY || action == MOVE || action == LINK)
+            || !(action == COPY || action == MOVE || action == LINK)
-                // only support valid source actions
+            // only support valid source actions
-                || (srcActions & action) == 0) {
+            || (srcActions & action) == 0) {
 
             action = NONE;
         }