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

*** 61,70 ****
--- 61,71 ----
      private static native void nativeRevalidateNSWindowShadow(long nsWindowPtr);
      private static native void nativeSetNSWindowMinimizedIcon(long nsWindowPtr, long nsImage);
      private static native void nativeSetNSWindowRepresentedFilename(long nsWindowPtr, String representedFilename);
      private static native void nativeSetEnabled(long nsWindowPtr, boolean isEnabled);
      private static native void nativeSynthesizeMouseEnteredExitedEvents();
+     private static native void nativeSynthesizeMouseEnteredExitedEvents(long nsWindowPtr, int eventType);
      private static native void nativeDispose(long nsWindowPtr);
      private static native void nativeEnterFullScreenMode(long nsWindowPtr);
      private static native void nativeExitFullScreenMode(long nsWindowPtr);
      static native CPlatformWindow nativeGetTopmostPlatformWindowUnderMouse();
  
*** 823,832 ****
--- 824,840 ----
      public void setModalBlocked(boolean blocked) {
          if (target.getModalExclusionType() == Dialog.ModalExclusionType.APPLICATION_EXCLUDE) {
              return;
          }
  
+         if (blocked) {
+             // We are going to show a modal window. Previously displayed window will be
+             // blocked/disabled. So we have to send mouse exited event to it now, since
+             // all mouse events are discarded for blocked/disabled windows.
+             nativeSynthesizeMouseEnteredExitedEvents(getNSWindowPtr(), CocoaConstants.NSMouseExited);
+         }
+ 
          nativeSetEnabled(getNSWindowPtr(), !blocked);
          checkBlockingAndOrder();
      }
  
      public final void invalidateShadow(){