diff -r c360667a0da2 -r e5901820c3c1 jdk/src/share/classes/java/util/stream/Stream.java
--- a/jdk/src/share/classes/java/util/stream/Stream.java	Tue Aug 06 16:01:39 2013 -0700
+++ b/jdk/src/share/classes/java/util/stream/Stream.java	Fri Jun 28 16:26:54 2013 -0400
@@ -651,12 +651,13 @@
      * }</pre>
      *
      * @param <R> the type of the result
+     * @param <A> the intermediate accumulation type of the {@code Collector}
      * @param collector the {@code Collector} describing the reduction
      * @return the result of the reduction
      * @see #collect(Supplier, BiConsumer, BiConsumer)
      * @see Collectors
      */
-    <R> R collect(Collector<? super T, R> collector);
+    <R, A> R collect(Collector<? super T, A, ? extends R> collector);
 
     /**
      * Returns the minimum element of this stream according to the provided