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

rev 52710 : Upstream/backport Shenandoah to JDK11u

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
+ * 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.

@@ -34,10 +34,11 @@
 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.*;

@@ -437,10 +438,14 @@
        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 {