src/java.desktop/macosx/classes/com/apple/laf/AquaInternalFrameDockIconUI.java

@@ -301,10 +301,11 @@
             if (parent instanceof JLayeredPane) {
                 ((JLayeredPane)parent).add(this, JLayeredPane.POPUP_LAYER, 0);
             }
         }
 
+        @SuppressWarnings("deprecation")
         public void hide() {
             final Container parent = getParent();
             final Rectangle r = this.getBounds();
             if (parent == null) return;
             parent.remove(this);