src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/oops/ObjectHeap.java

rev 52801 : Upstream/backport Shenandoah to JDK11u
* * *
[backport] 8237570: Shenandoah: cleanup uses of allocation/free threshold in static heuristics
Reviewed-by: rkennke

*** 1,7 ****
  /*
!  * Copyright (c) 2000, 2015, 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.
--- 1,7 ----
  /*
!  * Copyright (c) 2000, 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.
*** 34,43 ****
--- 34,44 ----
  import sun.jvm.hotspot.debugger.*;
  import sun.jvm.hotspot.gc.cms.*;
  import sun.jvm.hotspot.gc.shared.*;
  import sun.jvm.hotspot.gc.epsilon.*;
  import sun.jvm.hotspot.gc.g1.*;
+ import sun.jvm.hotspot.gc.shenandoah.*;
  import sun.jvm.hotspot.gc.parallel.*;
  import sun.jvm.hotspot.memory.*;
  import sun.jvm.hotspot.runtime.*;
  import sun.jvm.hotspot.types.*;
  import sun.jvm.hotspot.utilities.*;
*** 437,446 ****
--- 438,451 ----
         PSOldGen oldGen = psh.oldGen();
         addLiveRegions("old ", oldGen.objectSpace().getLiveRegions(), liveRegions);
      } else if (heap instanceof G1CollectedHeap) {
          G1CollectedHeap g1h = (G1CollectedHeap) heap;
          g1h.heapRegionIterate(lrc);
+     } else if (heap instanceof ShenandoahHeap) {
+        // Operation (currently) not supported with Shenandoah GC. Print
+        // a warning and leave the list of live regions empty.
+        System.err.println("Warning: Operation not supported with Shenandoah GC");
      } else if (heap instanceof EpsilonHeap) {
         EpsilonHeap eh = (EpsilonHeap) heap;
         liveRegions.add(eh.space().top());
         liveRegions.add(eh.space().bottom());
      } else {