src/share/classes/java/awt/Window.java

*** 314,323 ****
--- 314,328 ----
       * @see #setShape(Shape)
       * @since 1.7
       */
      private Shape shape = null;
  
+     /**
+      * Indicates if the window has been packed via pack().
+      */
+     private boolean isPacked = false;
+ 
      private static final String base = "win";
      private static int nameCounter = 0;
  
      /*
       * JDK 1.1 serialVersionUID
*** 762,772 ****
          Dimension newSize = getPreferredSize();
          if (peer != null) {
              setClientSize(newSize.width, newSize.height);
          }
  
!         if(beforeFirstShow) {
              isPacked = true;
          }
  
          validate();
      }
--- 767,777 ----
          Dimension newSize = getPreferredSize();
          if (peer != null) {
              setClientSize(newSize.width, newSize.height);
          }
  
!         if (beforeFirstShow) {
              isPacked = true;
          }
  
          validate();
      }
*** 864,875 ****
--- 869,885 ----
              }
              if (height < minSize.height) {
                  height = minSize.height;
              }
          }
+         synchronized (getTreeLock()) {
+             if (this.width != width || this.height != height) {
+                 isPacked = false;
+             }
              super.reshape(x, y, width, height);
          }
+     }
  
      void setClientSize(int w, int h) {
          synchronized (getTreeLock()) {
              setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
              setBounds(x, y, w, h);
*** 1012,1022 ****
--- 1022,1035 ----
       * @see #dispose
       * @deprecated As of JDK version 1.5, replaced by
       * {@link #setVisible(boolean)}.
       */
      @Deprecated
+     @Override
      public void hide() {
+         isPacked = false;
+ 
          synchronized(ownedWindowList) {
              for (int i = 0; i < ownedWindowList.size(); i++) {
                  Window child = ownedWindowList.elementAt(i).get();
                  if ((child != null) && child.visible) {
                      child.hide();
*** 3795,3804 ****
--- 3808,3821 ----
              public Point2D calculateSecurityWarningPosition(Window window,
                      double x, double y, double w, double h)
              {
                  return window.calculateSecurityWarningPosition(x, y, w, h);
              }
+ 
+             public boolean isPacked(Window window) {
+                 return window.isPacked;
+             }
          }); // WindowAccessor
      } // static
  
      // a window doesn't need to be updated in the Z-order.
      @Override