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

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2000, 2006, 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

@@ -131,10 +131,15 @@
  * @since 1.4
  */
 public abstract class VolatileImage extends Image implements Transparency
 {
 
+    /**
+     * Constructor for subclasses to call.
+     */
+    protected VolatileImage() {}
+
     // Return codes for validate() method
 
     /**
      * Validated image is ready to use as-is.
      */