--- old/src/java.base/share/classes/java/nio/file/DirectoryStream.java	2019-02-27 18:10:40.000000000 -0800
+++ new/src/java.base/share/classes/java/nio/file/DirectoryStream.java	2019-02-27 18:10:40.000000000 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 2019, 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
@@ -34,10 +34,10 @@
  * allows for the convenient use of the for-each construct to iterate over a
  * directory.
  *
- * <p> <b> While {@code DirectoryStream} extends {@code Iterable}, it is not a
+ * <p> {@code DirectoryStream} extends {@code IterableOnce}. It is not a
  * general-purpose {@code Iterable} as it supports only a single {@code
  * Iterator}; invoking the {@link #iterator iterator} method to obtain a second
- * or subsequent iterator throws {@code IllegalStateException}. </b>
+ * or subsequent iterator throws {@code IllegalStateException}.
  *
  * <p> An important property of the directory stream's {@code Iterator} is that
  * its {@link Iterator#hasNext() hasNext} method is guaranteed to read-ahead by
@@ -117,7 +117,7 @@
  */
 
 public interface DirectoryStream<T>
-    extends Closeable, Iterable<T> {
+    extends Closeable, IterableOnce<T> {
     /**
      * An interface that is implemented by objects that decide if a directory
      * entry should be accepted or filtered. A {@code Filter} is passed as the