src/macosx/classes/sun/lwawt/LWToolkit.java

*** 51,61 ****
      private int runState = STATE_NONE;
  
      private Clipboard clipboard;
      private MouseInfoPeer mouseInfoPeer;
  
!     public LWToolkit() {
      }
  
      /*
       * This method is called by subclasses to start this toolkit
       * by launching the message loop.
--- 51,66 ----
      private int runState = STATE_NONE;
  
      private Clipboard clipboard;
      private MouseInfoPeer mouseInfoPeer;
  
!     /**
!      * Dynamic Layout Resize client code setting.
!      */
!     private volatile boolean dynamicLayoutSetting = true;
! 
!     protected LWToolkit() {
      }
  
      /*
       * This method is called by subclasses to start this toolkit
       * by launching the message loop.
*** 559,564 ****
--- 564,602 ----
      public void ungrab(Window w) {
          if (w.getPeer() != null) {
              ((LWWindowPeer)w.getPeer()).ungrab(false);
          }
      }
+ 
+     @Override
+     protected final Object lazilyLoadDesktopProperty(final String name) {
+         if (name.equals("awt.dynamicLayoutSupported")) {
+             return isDynamicLayoutSupported();
+         }
+         return super.lazilyLoadDesktopProperty(name);
+     }
+ 
+     @Override
+     public final void setDynamicLayout(final boolean dynamic) {
+         dynamicLayoutSetting = dynamic;
+     }
+ 
+     @Override
+     protected final boolean isDynamicLayoutSet() {
+         return dynamicLayoutSetting;
+     }
+ 
+     @Override
+     public final boolean isDynamicLayoutActive() {
+         // "Live resizing" is active by default and user's data is ignored.
+         return isDynamicLayoutSupported();
+     }
+ 
+     /**
+      * Returns true if dynamic layout of Containers on resize is supported by
+      * the underlying operating system and/or window manager.
+      */
+     protected final boolean isDynamicLayoutSupported() {
+         // "Live resizing" is supported by default.
+         return true;
+     }
  }