--- old/test/tools/pack200/Utils.java	2016-02-20 19:12:38.000000000 +0800
+++ new/test/tools/pack200/Utils.java	2016-02-20 19:12:38.000000000 +0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 2016, 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
@@ -324,6 +324,9 @@
     private static void findFiles0(File startDir, List<File> list,
                                     FileFilter filter) throws IOException {
         File[] foundFiles = startDir.listFiles(filter);
+        if (foundFiles == null) {
+            return;
+        }
         list.addAll(Arrays.asList(foundFiles));
         File[] dirs = startDir.listFiles(DIR_FILTER);
         for (File dir : dirs) {