--- old/test/hotspot/jtreg/runtime/appcds/customLoader/ClassListFormatBase.java	2018-08-08 12:09:17.067892521 -0700
+++ new/test/hotspot/jtreg/runtime/appcds/customLoader/ClassListFormatBase.java	2018-08-08 12:09:16.697857566 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 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
@@ -63,7 +63,7 @@
         System.out.println("------------------------------");
 
         try {
-            OutputAnalyzer output = TestCommon.dump(appJar, appClasses);
+            OutputAnalyzer output = TestCommon.dump(appJar, appClasses, "-Xlog:cds");
             output.shouldHaveExitValue(0);
             output.shouldContain("Dumping");
             for (String s : expected_msgs) {