formatting and code style.

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

@@ -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();
         }
     }
@@ -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;
@@ -76,7 +76,17 @@ public class ClosableTabComponent extends JPanel {
     protected static class TabButton extends JButton implements ActionListener {
 
         private final ClosableTabComponent tabComponent;
-        private final MouseListener mouseListener = new MouseAdapter() {
+
+        protected TabButton(final ClosableTabComponent tabComponent) {
+            this.tabComponent = tabComponent;
+            putClientProperty(DarkButtonUI.KEY_VARIANT, DarkButtonUI.VARIANT_ONLY_LABEL);
+            putClientProperty(DarkButtonUI.KEY_NO_SHADOW_OVERWRITE, true);
+            setOpaque(false);
+            setRolloverEnabled(true);
+            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();
@@ -89,16 +99,6 @@ public class ClosableTabComponent extends JPanel {
                     }
                 }
             };
-
-        protected TabButton(final ClosableTabComponent tabComponent) {
-            this.tabComponent = tabComponent;
-            putClientProperty(DarkButtonUI.KEY_VARIANT, DarkButtonUI.VARIANT_ONLY_LABEL);
-            putClientProperty(DarkButtonUI.KEY_NO_SHADOW_OVERWRITE, true);
-            setOpaque(false);
-            setRolloverEnabled(true);
-            setIcon(UIManager.getIcon("TabbedPane.tabCloseIcon"));
-            setRolloverIcon(UIManager.getIcon("TabbedPane.tabCloseHoverIcon"));
-            addActionListener(this);
             addMouseListener(mouseListener);
         }
 

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;
 

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/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);
@@ -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/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);
     }
 
@@ -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);
     }
 

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

@@ -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/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

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;

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;
 

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/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;

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

@@ -280,7 +280,8 @@ public class DarkColorChooserPanel extends AbstractColorChooserPanel implements
                             Integer.valueOf(hexStr.substring(4, 6), 16),
                             alpha);
                         colorWheelPanel.setColor(c, textHex);
-                    } catch (NumberFormatException | IndexOutOfBoundsException ignore) {}
+                    } catch (NumberFormatException | IndexOutOfBoundsException ignore) {
+                    }
                 }
             });
         }

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/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/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/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/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;
@@ -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) {
@@ -724,8 +724,8 @@ 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);
                     }
@@ -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}.
          *
@@ -836,7 +836,7 @@ 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 {
     }
 
     //
@@ -845,7 +845,7 @@ public abstract class DarkFileChooserUIBridge extends BasicFileChooserUI {
     @SuppressWarnings("serial")
         // 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

@@ -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;
                 }

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

@@ -83,7 +83,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
         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() {
@@ -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() {
@@ -926,23 +928,32 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
         }
 
         String s = e.getPropertyName();
-        if (s.equals(JFileChooser.SELECTED_FILE_CHANGED_PROPERTY)) {
+        switch (s) {
+            case JFileChooser.SELECTED_FILE_CHANGED_PROPERTY:
                 doSelectedFileChanged(e);
-        } else if (s.equals(JFileChooser.SELECTED_FILES_CHANGED_PROPERTY)) {
+                break;
+            case JFileChooser.SELECTED_FILES_CHANGED_PROPERTY:
                 doSelectedFilesChanged(e);
-        } else if (s.equals(JFileChooser.DIRECTORY_CHANGED_PROPERTY)) {
+                break;
+            case JFileChooser.DIRECTORY_CHANGED_PROPERTY:
                 doDirectoryChanged(e);
-        } else if (s.equals(JFileChooser.FILE_FILTER_CHANGED_PROPERTY)) {
+                break;
+            case JFileChooser.FILE_FILTER_CHANGED_PROPERTY:
                 doFilterChanged(e);
-        } else if (s.equals(JFileChooser.FILE_SELECTION_MODE_CHANGED_PROPERTY)) {
+                break;
+            case JFileChooser.FILE_SELECTION_MODE_CHANGED_PROPERTY:
                 doFileSelectionModeChanged(e);
-        } else if (s.equals(JFileChooser.MULTI_SELECTION_ENABLED_CHANGED_PROPERTY)) {
+                break;
+            case JFileChooser.MULTI_SELECTION_ENABLED_CHANGED_PROPERTY:
                 doMultiSelectionChanged(e);
-        } else if (s.equals(JFileChooser.CANCEL_SELECTION)) {
+                break;
+            case JFileChooser.CANCEL_SELECTION:
                 applyEdit();
-        } else if (s.equals("busy")) {
+                break;
+            case "busy":
                 setCursor((Boolean) e.getNewValue() ? waitCursor : null);
-        } else if (s.equals(PropertyKey.COMPONENT_ORIENTATION)) {
+                break;
+            case PropertyKey.COMPONENT_ORIENTATION:
                 ComponentOrientation o = (ComponentOrientation) e.getNewValue();
                 JFileChooser cc = (JFileChooser) e.getSource();
                 if (o != e.getOldValue()) {
@@ -952,6 +963,7 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
                     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]);
@@ -1134,8 +1146,8 @@ public abstract class DarkFilePaneUIBridge extends JPanel implements PropertyCha
     @SuppressWarnings("serial")
         // 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) {
@@ -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;
@@ -1502,7 +1516,7 @@ 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;

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);

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

@@ -295,8 +295,7 @@ 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 Rectangle rowBounds,
                              final ListCellRenderer cellRenderer,
@@ -359,8 +358,7 @@ public class DarkListUIBridge extends BasicListUI {
             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
@@ -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();
@@ -1434,9 +1432,6 @@ public class DarkListUIBridge extends BasicListUI {
             (column == 0 && columnCount == 1)) {
             return list.getModel().getSize();
         }
-        if (column >= columnCount) {
-            return -1;
-        }
         if (layoutOrientation == JList.VERTICAL_WRAP) {
             if (column < (columnCount - 1)) {
                 return 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');
@@ -2369,7 +2363,7 @@ public class DarkListUIBridge extends BasicListUI {
 
                 // discontinuous selection actions are only enabled for
                 // DefaultListSelectionModel
-                return c != null && ((JList) c).getSelectionModel()
+                return c != null && ((JList<Object>) c).getSelectionModel()
                     instanceof DefaultListSelectionModel;
             }
 
@@ -2562,7 +2556,7 @@ 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() ||
@@ -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);
                 }

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;
@@ -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();
 

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

@@ -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();
 

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

@@ -202,13 +202,15 @@ 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(startLine).getStartOffset(),
             root.getElement(endLine).getEndOffset());
         for (Map.Entry<Position, Icon> icon : icons) {
             Rectangle lineRect;
@@ -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();

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/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/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;
@@ -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/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/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() {

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);

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);
@@ -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/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/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;
@@ -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

@@ -124,14 +124,16 @@ 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()))) {

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;
@@ -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

@@ -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);
             }
         });

core/src/main/java/com/github/weisj/darklaf/ui/table/DarkTableCellFocusBorder.java

@@ -34,8 +34,8 @@ import java.awt.*;
  */
 public class DarkTableCellFocusBorder extends DarkCellBorder {
 
-    protected Color rowBorderColor;
+    protected final Color rowBorderColor;
-    protected Color borderColor;
+    protected final Color borderColor;
 
     public DarkTableCellFocusBorder() {
         rowBorderColor = UIManager.getColor("Table.focusRowBorderColor");

core/src/main/java/com/github/weisj/darklaf/ui/table/DarkTableHeaderCorner.java

@@ -32,8 +32,8 @@ import java.awt.*;
  */
 public class DarkTableHeaderCorner extends JComponent implements UIResource {
 
-    protected Color borderColor;
+    protected final Color borderColor;
-    protected Color background;
+    protected final Color background;
 
     public DarkTableHeaderCorner() {
         background = UIManager.getColor("TableHeader.background");

core/src/main/java/com/github/weisj/darklaf/ui/table/DarkTableUI.java

@@ -434,7 +434,8 @@ public class DarkTableUI extends DarkTableUIBridge implements FocusListener {
             }
             if (table == null) return false;
             KeyStroke stroke = KeyStroke.getKeyStroke(event.getExtendedKeyCode(), event.getModifiersEx());
-            String actionName = String.valueOf(table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).get(stroke));
+            String actionName = String.valueOf(
+                table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).get(stroke));
             if ("null".equals(actionName)) actionName = null;
             String cutActionName = String.valueOf(TransferHandler.getCutAction().getValue(Action.NAME));
             String copyActionName = String.valueOf(TransferHandler.getCopyAction().getValue(Action.NAME));

core/src/main/java/com/github/weisj/darklaf/ui/table/TableUIBridge.java

@@ -1014,7 +1014,8 @@ public abstract class TableUIBridge extends TableUI {
      * @param draggedColumn the dragged column
      * @param distance      the distance
      */
-    protected void paintDraggedArea(final Graphics g, final int rMin, final int rMax, final TableColumn draggedColumn, final int distance) {
+    protected void paintDraggedArea(final Graphics g, final int rMin, final int rMax, final TableColumn draggedColumn,
+                                    final int distance) {
         int draggedColumnIndex = viewIndexForColumn(draggedColumn);
 
         Rectangle minCell = table.getCellRect(rMin, draggedColumnIndex, true);
@@ -1546,7 +1547,8 @@ public abstract class TableUIBridge extends TableUI {
                 if (Objects.equals(key, NEXT_ROW_CHANGE_LEAD) || Objects.equals(key, PREVIOUS_ROW_CHANGE_LEAD)) {
                     changeLead = (rsm.getSelectionMode()
                                   == ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
-                } else if (Objects.equals(key, NEXT_COLUMN_CHANGE_LEAD) || Objects.equals(key, PREVIOUS_COLUMN_CHANGE_LEAD)) {
+                } else if (Objects.equals(key, NEXT_COLUMN_CHANGE_LEAD) || Objects.equals(key,
+                                                                                          PREVIOUS_COLUMN_CHANGE_LEAD)) {
                     changeLead = (csm.getSelectionMode()
                                   == ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
                 }
@@ -1990,10 +1992,10 @@ public abstract class TableUIBridge extends TableUI {
 
                 htmlStr.append("<html>\n<body>\n<table>\n");
 
-                for (int row = 0; row < rows.length; row++) {
+                for (int value : rows) {
                     htmlStr.append("<tr>\n");
-                    for (int col = 0; col < cols.length; col++) {
+                    for (int i : cols) {
-                        Object obj = table.getValueAt(rows[row], cols[col]);
+                        Object obj = table.getValueAt(value, i);
                         String val = ((obj == null) ? "" : obj.toString());
                         plainStr.append(val).append('\t');
                         htmlStr.append("  <td>").append(val).append("</td>\n");

core/src/main/java/com/github/weisj/darklaf/ui/table/TextTableCellEditorBorder.java

@@ -34,7 +34,7 @@ import java.awt.*;
  */
 public class TextTableCellEditorBorder extends DarkTableCellBorder {
 
-    protected Color borderColor;
+    protected final Color borderColor;
 
     public TextTableCellEditorBorder() {
         borderColor = UIManager.getColor("TextField.border.enabled");

core/src/main/java/com/github/weisj/darklaf/ui/taskpane/DarkTaskPaneUI.java

@@ -95,8 +95,8 @@ public class DarkTaskPaneUI extends MetalTaskPaneUI {
     }
 
     protected static class DarkContentPaneBorder implements Border, UIResource {
-        protected Color color;
+        protected final Color color;
-        protected int arc;
+        protected final int arc;
 
 
         public DarkContentPaneBorder(final Color color, final int arc) {

core/src/main/java/com/github/weisj/darklaf/ui/text/DarkTextAreaUI.java

@@ -317,7 +317,9 @@ public class DarkTextAreaUI extends DarkTextUI {
             }
 
             public float getPreferredSpan(final int axis) {
-                if (getViewCount() != 1) { throw new Error("One child view is assumed."); }
+                if (getViewCount() != 1) {
+                    throw new Error("One child view is assumed.");
+                }
 
                 View v = getView(0);
                 return v.getPreferredSpan(axis);

core/src/main/java/com/github/weisj/darklaf/ui/text/DarkTextBorder.java

@@ -41,19 +41,19 @@ import java.awt.*;
 public class DarkTextBorder implements Border, UIResource {
 
     private static final Border editorBorder = new TextTableCellEditorBorder();
-    protected Color errorBorderColor;
+    protected final Color errorBorderColor;
-    protected Color focusErrorBorderColor;
+    protected final Color focusErrorBorderColor;
-    protected Color focusBorderColor;
+    protected final Color focusBorderColor;
-    protected Color borderColor;
+    protected final Color borderColor;
-    protected Color inactiveBorderColor;
+    protected final Color inactiveBorderColor;
-
+
-    protected int borderSize;
+    protected final int borderSize;
-    protected int arc;
+    protected final int arc;
-    protected int searchArc;
+    protected final int searchArc;
-    protected int focusArc;
+    protected final int focusArc;
-    protected int searchFocusArc;
+    protected final int searchFocusArc;
     protected Insets padding;
-    protected Icon showIcon;
+    protected final Icon showIcon;
 
     public DarkTextBorder() {
         focusErrorBorderColor = UIManager.getColor("TextField.border.focusError");

core/src/main/java/com/github/weisj/darklaf/ui/text/DarkTextFieldUIBridge.java

@@ -28,17 +28,7 @@ import com.github.weisj.darklaf.ui.html.DarkHTML;
 import javax.swing.*;
 import javax.swing.event.DocumentEvent;
 import javax.swing.plaf.basic.BasicTextFieldUI;
-import javax.swing.text.AbstractDocument;
+import javax.swing.text.*;
-import javax.swing.text.BadLocationException;
-import javax.swing.text.Document;
-import javax.swing.text.Element;
-import javax.swing.text.FieldView;
-import javax.swing.text.GlyphView;
-import javax.swing.text.JTextComponent;
-import javax.swing.text.ParagraphView;
-import javax.swing.text.Position;
-import javax.swing.text.View;
-import javax.swing.text.ViewFactory;
 import java.awt.*;
 
 /**

core/src/main/java/com/github/weisj/darklaf/ui/text/DarkTextUI.java

@@ -94,7 +94,8 @@ public abstract class DarkTextUI extends BasicTextUI implements PropertyChangeLi
         // OpenJDK BorderlessTextField has a bug with its setBorder implementation
         // so we reset the border
         // See https://mail.openjdk.java.net/pipermail/swing-dev/2020-March/010226.html
-        if (editor != null && "javax.swing.plaf.basic.BasicComboBoxEditor$BorderlessTextField".equals(editor.getClass().getName())) {
+        if (editor != null && "javax.swing.plaf.basic.BasicComboBoxEditor$BorderlessTextField".equals(
+            editor.getClass().getName())) {
             editor.setBorder(null);
         }
         editor.putClientProperty(KEY_ROUNDED_SELECTION, UIManager.getBoolean("TextComponent.roundedSelection"));
@@ -317,7 +318,8 @@ public abstract class DarkTextUI extends BasicTextUI implements PropertyChangeLi
                 km.clear();
                 if (accelerator != '\0') {
                     km.put(KeyStroke.getKeyStroke(accelerator, getFocusAcceleratorKeyMask()), "requestFocus");
-                    km.put(KeyStroke.getKeyStroke(accelerator, DarkSwingUtil.setAltGraphMask(getFocusAcceleratorKeyMask())),
+                    km.put(KeyStroke
+                               .getKeyStroke(accelerator, DarkSwingUtil.setAltGraphMask(getFocusAcceleratorKeyMask())),
                            "requestFocus");
                 }
             }
@@ -363,8 +365,10 @@ public abstract class DarkTextUI extends BasicTextUI implements PropertyChangeLi
          */
         EditorKit editorKit = getEditorKit(editor);
         if (editorKit instanceof DefaultEditorKit) {
-            Set<AWTKeyStroke> storedForwardTraversalKeys = editor.getFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS);
+            Set<AWTKeyStroke> storedForwardTraversalKeys = editor.getFocusTraversalKeys(
-            Set<AWTKeyStroke> storedBackwardTraversalKeys = editor.getFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS);
+                KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS);
+            Set<AWTKeyStroke> storedBackwardTraversalKeys = editor.getFocusTraversalKeys(
+                KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS);
             Set<AWTKeyStroke> forwardTraversalKeys = new HashSet<>(storedForwardTraversalKeys);
             Set<AWTKeyStroke> backwardTraversalKeys = new HashSet<>(storedBackwardTraversalKeys);
             if (editor.isEditable()) {
@@ -394,7 +398,7 @@ public abstract class DarkTextUI extends BasicTextUI implements PropertyChangeLi
      * Wrapper for text actions to return isEnabled false in case editor is non editable
      */
     public class TextActionWrapper extends TextAction {
-        TextAction action;
+        final TextAction action;
 
         public TextActionWrapper(final TextAction action) {
             super((String) action.getValue(Action.NAME));

core/src/main/java/com/github/weisj/darklaf/ui/text/SelectLineAction.java

@@ -24,13 +24,7 @@
 package com.github.weisj.darklaf.ui.text;
 
 import javax.swing.*;
-import javax.swing.text.BadLocationException;
+import javax.swing.text.*;
-import javax.swing.text.DefaultEditorKit;
-import javax.swing.text.Document;
-import javax.swing.text.Element;
-import javax.swing.text.JTextComponent;
-import javax.swing.text.Segment;
-import javax.swing.text.TextAction;
 import java.awt.event.ActionEvent;
 
 /**

core/src/main/java/com/github/weisj/darklaf/ui/text/SelectWordAction.java

@@ -24,11 +24,7 @@
 package com.github.weisj.darklaf.ui.text;
 
 import javax.swing.*;
-import javax.swing.text.BadLocationException;
+import javax.swing.text.*;
-import javax.swing.text.DefaultEditorKit;
-import javax.swing.text.JTextComponent;
-import javax.swing.text.TextAction;
-import javax.swing.text.Utilities;
 import java.awt.event.ActionEvent;
 
 /**

core/src/main/java/com/github/weisj/darklaf/ui/titledborder/DarkTitledBorder.java

@@ -39,7 +39,8 @@ public class DarkTitledBorder 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) {
         checkInsets(c);
         super.paintBorder(c, g, x, y, width, height);
     }

core/src/main/java/com/github/weisj/darklaf/ui/togglebutton/ButtonGroupInfo.java

@@ -29,7 +29,7 @@ import java.util.Enumeration;
 import java.util.HashSet;
 
 public class ButtonGroupInfo {
-    protected AbstractButton activeButton;
+    protected final AbstractButton activeButton;
 
     protected AbstractButton firstButton = null;
     protected AbstractButton lastButton = null;
@@ -37,7 +37,7 @@ public class ButtonGroupInfo {
     protected AbstractButton previousButton = null;
     protected AbstractButton nextButton = null;
 
-    protected HashSet<AbstractButton> buttonsInGroup;
+    protected final HashSet<AbstractButton> buttonsInGroup;
     protected boolean sourceFound = false;
 
     public ButtonGroupInfo(final AbstractButton btn) {
@@ -120,8 +120,7 @@ public class ButtonGroupInfo {
     }
 
     /**
-     * Find the new radio button that focus needs to be
+     * Find the new radio button that focus needs to be moved to in the group, select the button
-     * moved to in the group, select the button
      *
      * @param next, indicate if it's arrow up/left or down/right
      */
@@ -149,9 +148,8 @@ public class ButtonGroupInfo {
     }
 
     /**
-     * Find the button group the passed in AbstractButton belongs to, and
+     * Find the button group the passed in AbstractButton belongs to, and move focus to next component of the last
-     * move focus to next component of the last button in the group
+     * button in the group or previous component of first button
-     * or previous component of first button
      *
      * @param next, indicate if jump to next component or previous
      */

core/src/main/java/com/github/weisj/darklaf/ui/toolbar/DarkToolBarBorder.java

@@ -34,9 +34,9 @@ import java.awt.*;
  */
 public class DarkToolBarBorder extends AbstractBorder implements UIResource, SwingConstants {
 
-    protected Icon horizontalGrip;
+    protected final Icon horizontalGrip;
-    protected Icon verticalGrip;
+    protected final Icon verticalGrip;
-    protected Color borderColor;
+    protected final Color borderColor;
 
     public DarkToolBarBorder() {
         horizontalGrip = UIManager.getIcon("ToolBar.horizontalGrip.icon");

core/src/main/java/com/github/weisj/darklaf/ui/toolbar/DarkToolBarUI.java

@@ -46,7 +46,7 @@ public class DarkToolBarUI extends DarkToolBarUIBridge {
     protected Color background;
     private Dimension verticalDim = new Dimension(0, 0);
     private Dimension horizontalDim = new Dimension(0, 0);
-    private Timer timer = new Timer(5, e -> dragTo());
+    private final Timer timer = new Timer(5, e -> dragTo());
 
 
     public static ComponentUI createUI(final JComponent c) {
@@ -84,11 +84,6 @@ public class DarkToolBarUI extends DarkToolBarUIBridge {
         }
     }
 
-    @Override
-    protected void uninstallListeners() {
-        super.uninstallListeners();
-    }
-
     @Override
     public void setFloating(final boolean b, final Point p) {
         if (toolBar.isFloatable()) {
@@ -151,11 +146,6 @@ public class DarkToolBarUI extends DarkToolBarUIBridge {
         background = UIManager.getColor("ToolBar.background");
     }
 
-    @Override
-    protected void installListeners() {
-        super.installListeners();
-    }
-
     protected void setBorderToNonRollover(final Component c) {
     }
 
@@ -171,7 +161,9 @@ public class DarkToolBarUI extends DarkToolBarUIBridge {
                 frame = (Window) p;
             }
         }
-        if (floatingToolBar instanceof Window) { frame = (Window) floatingToolBar; }
+        if (floatingToolBar instanceof Window) {
+            frame = (Window) floatingToolBar;
+        }
         return new DarkDragWindow(frame);
     }
 
@@ -249,7 +241,9 @@ public class DarkToolBarUI extends DarkToolBarUIBridge {
     protected void updateDockingSource() {
         dockingSource.invalidate();
         Container dockingSourceParent = dockingSource.getParent();
-        if (dockingSourceParent != null) { dockingSourceParent.validate(); }
+        if (dockingSourceParent != null) {
+            dockingSourceParent.validate();
+        }
         dockingSource.repaint();
     }
 

core/src/main/java/com/github/weisj/darklaf/ui/toolbar/DarkToolBarUIBridge.java

@@ -54,11 +54,11 @@ import java.util.Objects;
  */
 public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingConstants {
     // Rollover button implementation.
-    protected static String IS_ROLLOVER = "JToolBar.isRollover";
+    protected static final String IS_ROLLOVER = "JToolBar.isRollover";
     protected static Border rolloverBorder;
     protected static Border nonRolloverBorder;
     protected static Border nonRolloverToggleBorder;
-    protected static String FOCUSED_COMP_INDEX = "JToolBar.focusedCompIndex";
+    protected static final String FOCUSED_COMP_INDEX = "JToolBar.focusedCompIndex";
     /**
      * The instance of {@code JToolBar}.
      */
@@ -115,8 +115,8 @@ public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingCons
      */
     protected String constraintBeforeFloating = BorderLayout.NORTH;
     protected boolean rolloverBorders = false;
-    protected HashMap<AbstractButton, Border> borderTable = new HashMap<>();
+    protected final HashMap<AbstractButton, Border> borderTable = new HashMap<>();
-    protected Hashtable<AbstractButton, Boolean> rolloverTable = new Hashtable<>();
+    protected final Hashtable<AbstractButton, Boolean> rolloverTable = new Hashtable<>();
     /**
      * As of Java 2 platform v1.3 this previously undocumented field is no longer used. Key bindings are now defined by
      * the LookAndFeel, please refer to the key bindings specification for further details.
@@ -189,7 +189,9 @@ public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingCons
         uninstallKeyboardActions();
 
         // Clear instance vars
-        if (isFloating()) { setFloating(false, null); }
+        if (isFloating()) {
+            setFloating(false, null);
+        }
 
         floatingToolBar = null;
         dragWindow = null;
@@ -421,7 +423,9 @@ public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingCons
     public void setOrientation(final int orientation) {
         toolBar.setOrientation(orientation);
 
-        if (dragWindow != null) { dragWindow.setOrientation(orientation); }
+        if (dragWindow != null) {
+            dragWindow.setOrientation(orientation);
+        }
     }
 
     /**
@@ -703,10 +707,14 @@ public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingCons
         switch (direction) {
             case EAST:
             case SOUTH:
-                if (focusedCompIndex < 0 || focusedCompIndex >= nComp) { break; }
+                if (focusedCompIndex < 0 || focusedCompIndex >= nComp) {
+                    break;
+                }
                 j = focusedCompIndex + 1;
                 while (j != focusedCompIndex) {
-                    if (j >= nComp) { j = 0; }
+                    if (j >= nComp) {
+                        j = 0;
+                    }
                     Component comp = toolBar.getComponentAtIndex(j++);
                     if (comp != null && comp.isFocusTraversable() && comp.isEnabled()) {
                         comp.requestFocus();
@@ -716,10 +724,14 @@ public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingCons
                 break;
             case WEST:
             case NORTH:
-                if (focusedCompIndex < 0 || focusedCompIndex >= nComp) { break; }
+                if (focusedCompIndex < 0 || focusedCompIndex >= nComp) {
+                    break;
+                }
                 j = focusedCompIndex - 1;
                 while (j != focusedCompIndex) {
-                    if (j < 0) { j = nComp - 1; }
+                    if (j < 0) {
+                        j = nComp - 1;
+                    }
                     Component comp = toolBar.getComponentAtIndex(j--);
 
                     if (comp != null && comp.isFocusTraversable() && comp.isEnabled()) {
@@ -1073,10 +1085,16 @@ public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingCons
     protected class FrameListener extends WindowAdapter {
         public void windowClosing(final WindowEvent w) {
             if (toolBar.isFloatable()) {
-                if (dragWindow != null) { dragWindow.setVisible(false); }
+                if (dragWindow != null) {
+                    dragWindow.setVisible(false);
+                }
                 floating = false;
-                if (floatingToolBar == null) { floatingToolBar = createFloatingWindow(toolBar); }
+                if (floatingToolBar == null) {
-                if (floatingToolBar instanceof Window) { ((Window) floatingToolBar).setVisible(false); }
+                    floatingToolBar = createFloatingWindow(toolBar);
+                }
+                if (floatingToolBar instanceof Window) {
+                    ((Window) floatingToolBar).setVisible(false);
+                }
                 floatingToolBar.getContentPane().remove(toolBar);
                 String constraint = constraintBeforeFloating;
                 if (toolBar.getOrientation() == JToolBar.HORIZONTAL) {
@@ -1088,12 +1106,18 @@ public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingCons
                         constraint = "West";
                     }
                 }
-                if (dockingSource == null) { dockingSource = toolBar.getParent(); }
+                if (dockingSource == null) {
-                if (propertyListener != null) { UIManager.removePropertyChangeListener(propertyListener); }
+                    dockingSource = toolBar.getParent();
+                }
+                if (propertyListener != null) {
+                    UIManager.removePropertyChangeListener(propertyListener);
+                }
                 dockingSource.add(toolBar, constraint);
                 dockingSource.invalidate();
                 Container dockingSourceParent = dockingSource.getParent();
-                if (dockingSourceParent != null) { dockingSourceParent.validate(); }
+                if (dockingSourceParent != null) {
+                    dockingSourceParent.validate();
+                }
                 dockingSource.repaint();
             }
         }
@@ -1120,7 +1144,9 @@ public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingCons
          */
         public void setOrientation(final int o) {
             if (isShowing()) {
-                if (o == this.orientation) { return; }
+                if (o == this.orientation) {
+                    return;
+                }
                 this.orientation = o;
                 Dimension size = getSize();
                 setSize(new Dimension(size.height, size.width));
@@ -1170,7 +1196,9 @@ public abstract class DarkToolBarUIBridge extends ToolBarUI implements SwingCons
          * @param c the new border color
          */
         public void setBorderColor(final Color c) {
-            if (this.borderColor == c) { return; }
+            if (this.borderColor == c) {
+                return;
+            }
             this.borderColor = c;
             repaint();
         }

core/src/main/java/com/github/weisj/darklaf/ui/toolbar/DropPreviewPanel.java

@@ -32,7 +32,7 @@ import java.awt.*;
 public class DropPreviewPanel extends JComponent {
 
     private JToolBar toolBar;
-    private Color dropBackground;
+    private final Color dropBackground;
 
     public DropPreviewPanel() {
         dropBackground = UIManager.getColor("ToolBar.dropColor");
@@ -62,19 +62,25 @@ public class DropPreviewPanel extends JComponent {
 
     @Override
     public Dimension getPreferredSize() {
-        if (toolBar != null) { return toolBar.getPreferredSize(); }
+        if (toolBar != null) {
+            return toolBar.getPreferredSize();
+        }
         return super.getPreferredSize();
     }
 
     @Override
     public Dimension getMaximumSize() {
-        if (toolBar != null) { return toolBar.getMaximumSize(); }
+        if (toolBar != null) {
+            return toolBar.getMaximumSize();
+        }
         return super.getMinimumSize();
     }
 
     @Override
     public Dimension getMinimumSize() {
-        if (toolBar != null) { return toolBar.getMinimumSize(); }
+        if (toolBar != null) {
+            return toolBar.getMinimumSize();
+        }
         return super.getMinimumSize();
     }
 }

core/src/main/java/com/github/weisj/darklaf/ui/tooltip/DarkTooltipUI.java

@@ -52,7 +52,7 @@ public class DarkTooltipUI extends BasicToolTipUI implements PropertyChangeListe
     protected JRootPane lastRootPane;
     protected ToolTipStyle style;
     protected boolean isTipTextChanging;
-    protected MouseListener exitListener = new MouseAdapter() {
+    protected final MouseListener exitListener = new MouseAdapter() {
         @Override
         public void mouseExited(final MouseEvent e) {
             boolean inside = isInside(e);
@@ -64,7 +64,7 @@ public class DarkTooltipUI extends BasicToolTipUI implements PropertyChangeListe
             }
         }
     };
-    protected MouseListener mouseListener = new MouseAdapter() {
+    protected final MouseListener mouseListener = new MouseAdapter() {
         @Override
         public void mouseEntered(final MouseEvent e) {
             if (e.getButton() == MouseEvent.BUTTON1) return;
@@ -90,7 +90,7 @@ public class DarkTooltipUI extends BasicToolTipUI implements PropertyChangeListe
             exitListener.mouseExited(e);
         }
     };
-    protected PropertyChangeListener componentPropertyChaneListener = e -> {
+    protected final PropertyChangeListener componentPropertyChaneListener = e -> {
         if (KEY_STYLE.equals(e.getPropertyName())) {
             updateStyle();
         }

core/src/main/java/com/github/weisj/darklaf/ui/tree/DarkDefaultTreeEditor.java

@@ -98,16 +98,6 @@ public class DarkDefaultTreeEditor extends DefaultTreeCellEditor {
                && DarkTreeCellRenderer.unwrapBooleanIfPossible(path.getLastPathComponent()) instanceof Boolean;
     }
 
-    @Override
-    public Object getCellEditorValue() {
-        return super.getCellEditorValue();
-    }
-
-    @Override
-    public boolean stopCellEditing() {
-        return super.stopCellEditing();
-    }
-
     @Override
     protected boolean canEditImmediately(final EventObject event) {
         if (event != null && event.getSource() instanceof JTree) {
@@ -120,7 +110,7 @@ public class DarkDefaultTreeEditor extends DefaultTreeCellEditor {
                     Rectangle bounds = tree.getRowBounds(row);
                     if (bounds != null) {
                         DarkTreeCellRenderer rend = (DarkTreeCellRenderer) renderer;
-                        DarkCellRendererToggleButton booleanRend = rend.getBooleanRenderer(tree);
+                        DarkCellRendererToggleButton<?> booleanRend = rend.getBooleanRenderer(tree);
                         JToggleButton button = booleanRend.getButton();
 
                         p.x -= bounds.x + button.getX();

core/src/main/java/com/github/weisj/darklaf/ui/tree/DarkTreeCellBorder.java

@@ -36,7 +36,7 @@ import java.awt.*;
  */
 public class DarkTreeCellBorder implements Border, UIResource {
 
-    protected Color borderColor;
+    protected final Color borderColor;
     protected Insets insets;
 
     public DarkTreeCellBorder() {

core/src/main/java/com/github/weisj/darklaf/ui/tree/DarkTreeCellRenderer.java

@@ -41,7 +41,7 @@ public class DarkTreeCellRenderer extends DefaultTreeCellRenderer implements Tre
         new DarkCellRendererToggleButton<>(new DarkCellRendererToggleButton.CellEditorCheckBox(false));
     private final DarkCellRendererToggleButton<DarkCellRendererToggleButton.CellEditorRadioButton> radioRenderer =
         new DarkCellRendererToggleButton<>(new DarkCellRendererToggleButton.CellEditorRadioButton(false));
-    private TreeRendererComponent rendererComponent = new TreeRendererComponent();
+    private final TreeRendererComponent rendererComponent = new TreeRendererComponent();
 
     @Override
     public Component getTreeCellRendererComponent(final JTree tree, final Object value, final boolean sel,
@@ -83,7 +83,7 @@ public class DarkTreeCellRenderer extends DefaultTreeCellRenderer implements Tre
         return Boolean.TRUE.equals(tree.getClientProperty(DarkTreeUI.KEY_RENDER_BOOLEAN_AS_CHECKBOX));
     }
 
-    protected DarkCellRendererToggleButton getBooleanRenderer(final JTree table) {
+    protected DarkCellRendererToggleButton<?> getBooleanRenderer(final JTree table) {
         if (DarkTreeUI.RENDER_TYPE_RADIOBUTTON.equals(table.getClientProperty(DarkTreeUI.KEY_BOOLEAN_RENDER_TYPE))) {
             return radioRenderer;
         }

core/src/main/java/com/github/weisj/darklaf/ui/tree/DarkTreeUI.java

@@ -236,7 +236,8 @@ public class DarkTreeUI extends BasicTreeUI implements PropertyChangeListener {
                     TreePath selectionPath = tree.getPathForRow(selectionRow);
                     if (selectionPath == null) return;
 
-                    if (tree.getModel().isLeaf(selectionPath.getLastPathComponent()) || tree.isCollapsed(selectionRow)) {
+                    if (tree.getModel().isLeaf(selectionPath.getLastPathComponent()) || tree.isCollapsed(
+                        selectionRow)) {
                         final TreePath parentPath = tree.getPathForRow(selectionRow).getParentPath();
                         if (parentPath != null) {
                             if (parentPath.getParentPath() != null || tree.isRootVisible()) {
@@ -339,9 +340,11 @@ public class DarkTreeUI extends BasicTreeUI implements PropertyChangeListener {
                 owner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
             }
             boolean treeEditor = owner instanceof JComponent
-                && Boolean.TRUE.equals(((JComponent) owner).getClientProperty(DarkToggleButtonUI.KEY_IS_TREE_EDITOR));
+                                 && Boolean.TRUE.equals(
+                ((JComponent) owner).getClientProperty(DarkToggleButtonUI.KEY_IS_TREE_EDITOR));
             boolean treeRenderer = owner instanceof JComponent
-                && Boolean.TRUE.equals(((JComponent) owner).getClientProperty(DarkToggleButtonUI.KEY_IS_TREE_RENDER));
+                                   && Boolean.TRUE.equals(
+                ((JComponent) owner).getClientProperty(DarkToggleButtonUI.KEY_IS_TREE_RENDER));
             return treeEditor || treeRenderer;
         }
         return true;
@@ -437,7 +440,9 @@ public class DarkTreeUI extends BasicTreeUI implements PropertyChangeListener {
                 path = (TreePath) paintingEnumerator.nextElement();
                 if (path != null) {
                     isLeaf = treeModel.isLeaf(path.getLastPathComponent());
-                    if (isLeaf) { isExpanded = hasBeenExpanded = false; } else {
+                    if (isLeaf) {
+                        isExpanded = hasBeenExpanded = false;
+                    } else {
                         isExpanded = treeState.getExpandedState(path);
                         hasBeenExpanded = tree.hasBeenExpanded(path);
                     }
@@ -447,7 +452,9 @@ public class DarkTreeUI extends BasicTreeUI implements PropertyChangeListener {
                     // from under us (usually in another thread).
                     // Swing isn't multithreaded, but I'll put this
                     // check in anyway.
-                    { return; }
+                    {
+                        return;
+                    }
 
                     // See if the vertical line to the parent has been drawn.
                     parentPath = path.getParentPath();
@@ -467,7 +474,9 @@ public class DarkTreeUI extends BasicTreeUI implements PropertyChangeListener {
                                            hasBeenExpanded, isLeaf);
                     }
                     paintRow(g, paintBounds, insets, bounds, path, row, isExpanded, hasBeenExpanded, isLeaf);
-                    if ((bounds.y + bounds.height) >= endY) { done = true; }
+                    if ((bounds.y + bounds.height) >= endY) {
+                        done = true;
+                    }
                 } else {
                     done = true;
                 }
@@ -666,7 +675,8 @@ public class DarkTreeUI extends BasicTreeUI implements PropertyChangeListener {
         }
 
         //Descend to deepest last child.
-        TreePath lastChildPath = path.pathByAddingChild(treeModel.getChild(path.getLastPathComponent(), childCount - 1));
+        TreePath lastChildPath = path.pathByAddingChild(
+            treeModel.getChild(path.getLastPathComponent(), childCount - 1));
         while (tree.isExpanded(lastChildPath)) {
             int count = treeModel.getChildCount(lastChildPath.getLastPathComponent());
             lastChildPath = lastChildPath.pathByAddingChild(treeModel.getChild(lastChildPath.getLastPathComponent(),

core/src/main/java/com/github/weisj/darklaf/util/DarkUIUtil.java

@@ -52,7 +52,8 @@ public final class DarkUIUtil {
     public final static AlphaComposite GLOW_ALPHA = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f);
     public final static AlphaComposite DROP_ALPHA = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.8f);
     public final static AlphaComposite SHADOW_COMPOSITE = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.1f);
-    public static final boolean USE_QUARTZ = PropertyValue.TRUE.equals(System.getProperty("apple.awt.graphics.UseQuartz"));
+    public static final boolean USE_QUARTZ = PropertyValue.TRUE.equals(
+        System.getProperty("apple.awt.graphics.UseQuartz"));
     private static final Rectangle iconRect = new Rectangle();
     private static final Rectangle textRect = new Rectangle();
 
@@ -332,7 +333,7 @@ public final class DarkUIUtil {
         g.fillRect(x, y + height - thickness, width, thickness);
     }
 
-    public static boolean isOverText(final MouseEvent e, final int index, final JList list) {
+    public static boolean isOverText(final MouseEvent e, final int index, final JList<?> list) {
         Rectangle bounds = list.getCellBounds(index, index);
         if (!bounds.contains(e.getPoint())) return false;
         //noinspection unchecked

core/src/main/java/com/github/weisj/darklaf/util/SwingXUtilities.java

@@ -33,12 +33,12 @@ import java.awt.geom.AffineTransform;
 public class SwingXUtilities {
 
 
+    @SuppressWarnings("unchecked")
     public static Point convertPointToParent(final Component source, final Point p) {
-        JXLayer layer = DarkUIUtil.getParentOfType(JXLayer.class, source);
+        JXLayer<? extends JComponent> layer = DarkUIUtil.getParentOfType(JXLayer.class, source);
         if (layer != null && layer.getUI() instanceof TransformUI) {
             TransformUI ui = (TransformUI) layer.getUI();
             Point pos = SwingUtilities.convertPoint(source, p, layer);
-            //noinspection unchecked
             AffineTransform transform = ui.getPreferredTransform(layer.getSize(), layer);
             transform.transform(pos, pos);
             return pos;

core/src/main/java/javax/swing/text/DefaultHighlighterDark/DarkHighlightPainter.java

@@ -50,14 +50,14 @@ public class DarkHighlightPainter extends DefaultHighlighter.DefaultHighlightPai
     private static final boolean DEBUG_COLOR = false;
     private Paint paint;
     private Color color;
-    private ColorWrapper wrapper;
+    private final ColorWrapper wrapper;
     private boolean roundedEdges;
     private AlphaComposite alphaComposite;
     private float alpha;
     private int selectionStart = -1;
     private int selectionEnd = -1;
     private int repaintCount = 0;
-    private int arcSize;
+    private final int arcSize;
     private boolean suppressRounded = false;
     private boolean enabled;
 
@@ -402,7 +402,8 @@ public class DarkHighlightPainter extends DefaultHighlighter.DefaultHighlightPai
             boolean roundLeftBottom = !isFirstLine && !extendToStart;
             boolean roundLeftTop = isSecondLine && !extendToStart && posStart.x >= r.x + arcSize;
             paintRoundRect(g2d, r, arcSize, roundLeftTop, roundRightTop, roundLeftBottom, !extendToEnd);
-            boolean drawCorner = !extendToEnd && !roundRightTop && r.x + r.width <= c.getWidth() - margin.right - arcSize;
+            boolean drawCorner = !extendToEnd && !roundRightTop
+                                 && r.x + r.width <= c.getWidth() - margin.right - arcSize;
             if (drawCorner) {
                 paintEndArc(g2d, r);
                 r.width += arcSize;
@@ -435,7 +436,8 @@ public class DarkHighlightPainter extends DefaultHighlighter.DefaultHighlightPai
             start = Math.min(start, c.getWidth() - ins.right - w);
             if (rounded) {
                 boolean roundTop = isFirstLine || selectionStart;
-                boolean roundBottom = isLastLine || (isSecondLastLine && posEnd.x + posEnd.width <= start + w - arcSize);
+                boolean roundBottom = isLastLine || (isSecondLastLine
+                                                     && posEnd.x + posEnd.width <= start + w - arcSize);
                 boolean roundLeftTop = isFirstLine && start == ins.left;
                 paintRoundRect(g2d, new Rectangle(start, r.y, w, r.height), arcSize,
                                roundLeftTop, roundTop, false, roundBottom);

core/src/main/java/org/pbjar/jxlayer/plaf/ext/MouseEventUI.java

@@ -254,7 +254,8 @@ public class MouseEventUI<V extends JComponent> extends AbstractLayerUI<V> {
     }
 
     private void generateEnterExitEvents(final JXLayer<? extends V> layer,
-                                         final MouseEvent originalEvent, final Component newTarget, final Point realPoint) {
+                                         final MouseEvent originalEvent, final Component newTarget,
+                                         final Point realPoint) {
         if (lastEnteredTarget != newTarget) {
             dispatchMouseEvent(transformMouseEvent(layer, originalEvent,
                                                    lastEnteredTarget, realPoint, MouseEvent.MOUSE_EXITED));
@@ -419,7 +420,8 @@ public class MouseEventUI<V extends JComponent> extends AbstractLayerUI<V> {
 
 
     private MouseEvent transformMouseEvent(final JXLayer<? extends V> layer,
-                                           final MouseEvent mouseEvent, final Component target, final Point targetPoint, final int id) {
+                                           final MouseEvent mouseEvent, final Component target, final Point targetPoint,
+                                           final int id) {
         if (target == null) {
             return null;
         } else {

core/src/main/java/org/pbjar/jxlayer/plaf/ext/TransformUI.java

@@ -36,12 +36,7 @@ import org.jdesktop.jxlayer.JXLayer;
 import org.jdesktop.jxlayer.plaf.AbstractBufferedLayerUI;
 import org.jdesktop.jxlayer.plaf.LayerUI;
 import org.jdesktop.swingx.ForwardingRepaintManager;
-import org.pbjar.jxlayer.plaf.ext.transform.DefaultTransformModel;
+import org.pbjar.jxlayer.plaf.ext.transform.*;
-import org.pbjar.jxlayer.plaf.ext.transform.TransformLayout;
-import org.pbjar.jxlayer.plaf.ext.transform.TransformModel;
-import org.pbjar.jxlayer.plaf.ext.transform.TransformRPMAnnotation;
-import org.pbjar.jxlayer.plaf.ext.transform.TransformRPMFallBack;
-import org.pbjar.jxlayer.plaf.ext.transform.TransformRPMSwingX;
 import org.pbjar.jxlayer.repaint.RepaintManagerProvider;
 import org.pbjar.jxlayer.repaint.RepaintManagerUtils;
 import org.pbjar.jxlayer.repaint.WrappedRepaintManager;
@@ -56,11 +51,7 @@ import java.awt.geom.AffineTransform;
 import java.awt.geom.Area;
 import java.awt.image.BufferedImage;
 import java.beans.PropertyChangeListener;
-import java.util.HashMap;
+import java.util.*;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Set;
 import java.util.logging.ConsoleHandler;
 import java.util.logging.Logger;
 

core/src/main/java/org/pbjar/jxlayer/plaf/ext/transform/TransformRPMImpl.java

@@ -59,7 +59,7 @@ public final class TransformRPMImpl {
      *
      * @see #hackInitialization(RepaintManager, RepaintManager)
      */
-    public static boolean hack = false;
+    public static final boolean hack = false;
 
     static {
         LOGGER.setUseParentHandlers(false);

core/src/main/java/org/pbjar/jxlayer/repaint/RepaintManagerUtils.java

@@ -128,8 +128,7 @@ public final class RepaintManagerUtils {
     private static RepaintManager createManager(
         final Class<? extends RepaintManager> clazz, final RepaintManager delegate) {
         try {
-            RepaintManager newManager = clazz.getConstructor(RepaintManager.class).newInstance(delegate);
+            return clazz.getConstructor(RepaintManager.class).newInstance(delegate);
-            return newManager;
         } catch (Throwable t) {
             throw new RuntimeException("Cannot instantiate " + clazz.getName(), t);
         }

core/src/main/java/org/pbjar/jxlayer/repaint/WrappedRepaintManager.java

@@ -213,7 +213,6 @@ public class WrappedRepaintManager extends RepaintManager {
     }
 
 
-
     /**
      * Just delegates. {@inheritDoc}
      */

core/src/test/java/defaults/SampleRenderer.java

@@ -12,7 +12,7 @@ import java.awt.*;
  */
 public class SampleRenderer extends JLabel implements TableCellRenderer {
 
-    private final DarkCellRendererToggleButton booleanRenderer =
+    private final DarkCellRendererToggleButton<?> booleanRenderer =
         new DarkCellRendererToggleButton<>(new DarkCellRendererToggleButton.CellEditorCheckBox(true));
 
     public SampleRenderer() {