src/java.desktop/share/classes/java/awt/image/BufferStrategy.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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

@@ -133,10 +133,15 @@
  * @since 1.4
  */
 public abstract class BufferStrategy {
 
     /**
+     * Constructor for subclasses to call.
+     */
+    public BufferStrategy() {}
+
+    /**
      * Returns the {@code BufferCapabilities} for this
      * {@code BufferStrategy}.
      *
      * @return the buffering capabilities of this strategy
      */