test/hotspot/jtreg/gc/TestAllocHumongousFragment.java

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  /*
   * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2016, 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.

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   *      TestAllocHumongousFragment
   *
   * @run main/othervm -Xmx1g -Xms1g -Xlog:gc -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:ShenandoahTargetNumRegions=2048
   *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive
   *      TestAllocHumongousFragment
+ */
+ 
+ /*
+  * @test id=generational
+  * @summary Make sure Shenandoah can recover from humongous allocation fragmentation
+  * @key randomness
+  * @requires vm.gc.Shenandoah
+  * @library /test/lib
+  *
+  * @run main/othervm -Xmx1g -Xms1g -Xlog:gc -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:ShenandoahTargetNumRegions=2048
+  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahGCMode=generational
+  *      -XX:+ShenandoahVerify
+  *      TestAllocHumongousFragment
+  *
+  * @run main/othervm -Xmx1g -Xms1g -Xlog:gc -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:ShenandoahTargetNumRegions=2048
+  *      -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=adaptive -XX:ShenandoahGCMode=generational
+  *      TestAllocHumongousFragment
   */
  
  /*
   * @test id=static
   * @summary Make sure Shenandoah can recover from humongous allocation fragmentation