src/java.desktop/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java

*** 470,479 ****
--- 470,480 ----
      }
  
      @Override // PlatformWindow
      public void setBounds(int x, int y, int w, int h) {
          nativeSetNSWindowBounds(getNSWindowPtr(), x, y, w, h);
+         checkZoom(false);
      }
  
      private boolean isMaximized() {
          return undecorated ? this.normalBounds != null
                  : CWrapper.NSWindow.isZoomed(getNSWindowPtr());
*** 948,958 ****
          responder.handleWindowFocusEvent(gained, oppositePeer);
      }
  
      protected void deliverMoveResizeEvent(int x, int y, int width, int height,
                                          boolean byUser) {
!         checkZoom();
  
          final Rectangle oldB = nativeBounds;
          nativeBounds = new Rectangle(x, y, width, height);
          if (peer != null) {
              peer.notifyReshape(x, y, width, height);
--- 949,959 ----
          responder.handleWindowFocusEvent(gained, oppositePeer);
      }
  
      protected void deliverMoveResizeEvent(int x, int y, int width, int height,
                                          boolean byUser) {
!         checkZoom(true);
  
          final Rectangle oldB = nativeBounds;
          nativeBounds = new Rectangle(x, y, width, height);
          if (peer != null) {
              peer.notifyReshape(x, y, width, height);
*** 980,995 ****
          if (peer != null) {
              peer.notifyZoom(isZoomed);
          }
      }
  
!     private void checkZoom() {
!         if (target instanceof Frame && isVisible()) {
!             Frame targetFrame = (Frame)target;
!             if (targetFrame.getExtendedState() != Frame.MAXIMIZED_BOTH && isMaximized()) {
                  deliverZoom(true);
!             } else if (targetFrame.getExtendedState() == Frame.MAXIMIZED_BOTH && !isMaximized()) {
                  deliverZoom(false);
              }
          }
      }
  
--- 981,1002 ----
          if (peer != null) {
              peer.notifyZoom(isZoomed);
          }
      }
  
!     private void checkZoom(boolean mouseEvent) {
! 
!         if(mouseEvent && !isVisible()){
!             return;
!         }
! 
!         if (target instanceof Frame) {
!             Frame targetFrame = (Frame) target;
!             int state = targetFrame.getExtendedState();
!             if (state != Frame.MAXIMIZED_BOTH && isMaximized()) {
                  deliverZoom(true);
!             } else if (mouseEvent && state == Frame.MAXIMIZED_BOTH && !isMaximized()) {
                  deliverZoom(false);
              }
          }
      }