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

*** 155,160 ****
--- 155,165 ----
      public void setWindowState(int windowState);
  
      public long getLayerPtr();
  
      public LWWindowPeer getPeer();
+ 
+     /**
+      * Updates a shape of the shadow.
+      */
+     void invalidateShadow();
  }