--- old/test/hotspot/jtreg/runtime/CompressedOops/CompressedClassPointers.java	2019-07-18 13:58:33.215557724 +0530
+++ new/test/hotspot/jtreg/runtime/CompressedOops/CompressedClassPointers.java	2019-07-18 13:58:33.019555986 +0530
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 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
@@ -70,6 +70,7 @@
     public static void largeHeapTest() throws Exception {
         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
             "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:+UnlockExperimentalVMOptions",
             "-Xmx30g",
             "-XX:-UseAOT", // AOT explicitly set klass shift to 3.
             "-Xlog:gc+metaspace=trace",