经过Hugh老哥提醒，使用注解的方式避免重复的判断

designer-realize/src/main/java/com/fr/design/parameter/ParameterDefinitePane.java

@@ -41,6 +41,7 @@ import com.fr.main.parameter.TemplateParameterAttr;
 import com.fr.stable.ArrayUtils;
 import com.fr.stable.bridge.StableFactory;
 import com.fr.stable.core.PropertyChangeAdapter;
+import org.jetbrains.annotations.NotNull;
 
 import javax.swing.JCheckBoxMenuItem;
 import javax.swing.JComponent;
@@ -236,7 +237,7 @@ public class ParameterDefinitePane extends JPanel implements ToolBarMenuDockPlus
      *
      * @param workBook
      */
-    public void populate(final JWorkBook workBook) {
+    public void populate(@NotNull final JWorkBook workBook) {
         isEditing = false;
         this.workBook = workBook;
         ReportParameterAttr reportParameterAttr = workBook.getTarget().getReportParameterAttr();
@@ -425,9 +426,7 @@ public class ParameterDefinitePane extends JPanel implements ToolBarMenuDockPlus
         if (propertyChangeListener != null) {
             propertyChangeListener.propertyChange();
         }
-        if (workBook != null) {
+        workBook.setAutoHeightForCenterPane();
-            workBook.setAutoHeightForCenterPane();
-        }
     }
 
     /**
@@ -448,9 +447,7 @@ public class ParameterDefinitePane extends JPanel implements ToolBarMenuDockPlus
         if (propertyChangeListener != null) {
             propertyChangeListener.propertyChange();
         }
-        if (workBook != null) {
+        workBook.setAutoHeightForCenterPane();
-            workBook.setAutoHeightForCenterPane();
-        }
     }
 
     /**
@@ -473,9 +470,7 @@ public class ParameterDefinitePane extends JPanel implements ToolBarMenuDockPlus
         if (propertyChangeListener != null) {
             propertyChangeListener.propertyChange();
         }
-        if (workBook != null) {
+        workBook.setAutoHeightForCenterPane();
-            workBook.setAutoHeightForCenterPane();
-        }
     }
 
     /**