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src/java.desktop/share/classes/java/awt/event/WindowAdapter.java
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@@ -1,7 +1,7 @@
/*
- * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2020, 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
@@ -54,10 +54,15 @@
*/
public abstract class WindowAdapter
implements WindowListener, WindowStateListener, WindowFocusListener
{
/**
+ * Constructs a {@code WindowAdapter}.
+ */
+ protected WindowAdapter() {}
+
+ /**
* Invoked when a window has been opened.
*/
public void windowOpened(WindowEvent e) {}
/**
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