--- old/test/langtools/tools/lib/toolbox/ToolBox.java	2018-04-12 12:51:15.684948878 -0700
+++ new/test/langtools/tools/lib/toolbox/ToolBox.java	2018-04-12 12:51:15.408936831 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2018, 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
@@ -142,7 +142,7 @@
             // report first difference
             for (int i = 0; i < Math.min(l1.size(), l2.size()); i++) {
                 String s1 = l1.get(i);
-                String s2 = l1.get(i);
+                String s2 = l2.get(i);
                 if (!Objects.equals(s1, s2)) {
                     throw new Error("comparison failed, index " + i +
                             ", (" + s1 + ":" + s2 + ")");