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

@@ -66,10 +66,11 @@
         public static native void setOpaque(long window, boolean opaque);
         public static native void setBackgroundColor(long window, long color);
 
         public static native void miniaturize(long window);
         public static native void deminiaturize(long window);
+        public static native boolean isZoomed(long window);
         public static native void zoom(long window);
 
         public static native void makeFirstResponder(long window, long responder);
     }