test/hotspot/jtreg/gc/ergonomics/TestDynamicNumberOfGCThreads.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2015, 2016, 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -40,20 +40,22 @@
     testDynamicNumberOfGCThreads("UseConcMarkSweepGC");
 
     testDynamicNumberOfGCThreads("UseG1GC");
 
     testDynamicNumberOfGCThreads("UseParallelGC");
+
+    testDynamicNumberOfGCThreads("UseShenandoahGC");
   }
 
   private static void verifyDynamicNumberOfGCThreads(OutputAnalyzer output) {
     output.shouldHaveExitValue(0); // test should run succesfully
     output.shouldContain("new_active_workers");
   }
 
   private static void testDynamicNumberOfGCThreads(String gcFlag) throws Exception {
     // UseDynamicNumberOfGCThreads and TraceDynamicGCThreads enabled
-    String[] baseArgs = {"-XX:+" + gcFlag, "-Xmx10M", "-XX:+UseDynamicNumberOfGCThreads", "-Xlog:gc+task=trace", GCTest.class.getName()};
+    String[] baseArgs = {"-XX:+UnlockExperimentalVMOptions", "-XX:+" + gcFlag, "-Xmx10M", "-XX:+UseDynamicNumberOfGCThreads", "-Xlog:gc+task=trace", GCTest.class.getName()};
 
     // Base test with gc and +UseDynamicNumberOfGCThreads:
     ProcessBuilder pb_enabled = ProcessTools.createJavaProcessBuilder(baseArgs);
     verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()));