--- old/src/share/classes/java/util/stream/IntStream.java	2013-07-10 14:11:46.251135573 -0700
+++ new/src/share/classes/java/util/stream/IntStream.java	2013-07-10 14:11:46.063135576 -0700
@@ -806,7 +806,8 @@
      * elements of a first {@code IntStream} succeeded by all the elements of the
      * second {@code IntStream}. The resulting stream is ordered if both
      * of the input streams are ordered, and parallel if either of the input
-     * streams is parallel.
+     * streams is parallel.  When the resulting stream is closed, the close
+     * handlers for both input streams is invoked.
      *
      * @param a the first stream
      * @param b the second stream to concatenate on to end of the first stream
@@ -818,7 +819,8 @@
 
         Spliterator.OfInt split = new Streams.ConcatSpliterator.OfInt(
                 a.spliterator(), b.spliterator());
-        return StreamSupport.intStream(split, a.isParallel() || b.isParallel());
+        IntStream stream = StreamSupport.intStream(split, a.isParallel() || b.isParallel());
+        return stream.onClose(Streams.composedClose(a, b));
     }
 
     /**