--- a/langtools/src/share/classes/com/sun/tools/javac/file/Locations.java	Tue Sep 25 11:56:46 2012 +0100
+++ b/langtools/src/share/classes/com/sun/tools/javac/file/Locations.java	Tue Sep 25 13:06:58 2012 -0700
@@ -733,11 +733,7 @@
                 urls[count++] = url;
             }
         }
-        if (urls.length != count) {
-            URL[] tmp = new URL[count];
-            System.arraycopy(urls, 0, tmp, 0, count);
-            urls = tmp;
-        }
+        urls = Arrays.copyOf(urls, count);
         return urls;
     }