src/share/classes/java/util/function/IntBlock.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2010, 2013, 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

@@ -31,10 +31,11 @@
  * <p/>This is the primitive type specialization of {@link Block} for
  * {@code int} and also may be used as a {@code Block<Integer>}.
  *
  * @since 1.8
  */
+@FunctionalInterface
 public interface IntBlock {
 
     /**
      * Use the {@code int} input value in an operation which may modify external
      * state.