src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTreeUI.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -3488,11 +3488,11 @@
       * MouseInputHandler handles passing all mouse events,
       * including mouse motion events, until the mouse is released to
       * the destination it is constructed with. It is assumed all the
       * events are currently target at source.
       */
-    public class MouseInputHandler extends Object implements
+    public class MouseInputHandler implements
                      MouseInputListener
     {
         /** Source that events are coming from. */
         protected Component        source;
         /** Destination that receives all events. */