test/hotspot/jtreg/gc/shenandoah/TestRefprocSanity.java

@@ -1,7 +1,8 @@
  /*
   * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
+  * Copyright Amazon.com Inc. 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.

@@ -39,10 +40,25 @@
   * @run main/othervm -Xmx128m -Xms128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
   *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive
   *      TestRefprocSanity
   */
  
+ /*
+  * @test id=generational
+  * @summary Test that null references/referents work fine
+  * @requires vm.gc.Shenandoah
+  *
+  * @run main/othervm -Xmx128m -Xms128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
+  *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational
+  *      -XX:+ShenandoahVerify
+  *      TestRefprocSanity
+  *
+  * @run main/othervm -Xmx128m -Xms128m -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions
+  *      -XX:+UseShenandoahGC -XX:ShenandoahGCMode=generational
+  *      TestRefprocSanity
+  */
+ 
  import java.lang.ref.*;
  
  public class TestRefprocSanity {
  
      static final long TARGET_MB = Long.getLong("target", 1_000); // 1 Gb allocation