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

@@ -1036,10 +1036,13 @@
     private void windowWillEnterFullScreen() {
         isFullScreenAnimationOn = true;
     }
 
     private void windowDidEnterFullScreen() {
+        if (LWWindowPeer.getWindowUnderCursor() != this.peer) {
+            nativeSynthesizeMouseEnteredExitedEvents();
+        }
         isFullScreenAnimationOn = false;
     }
 
     private void windowWillExitFullScreen() {
         isFullScreenAnimationOn = true;