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

*** 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.
*** 35,44 ****
--- 35,45 ----
  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.parallel.*;
+ import sun.jvm.hotspot.gc.z.*;
  import sun.jvm.hotspot.memory.*;
  import sun.jvm.hotspot.runtime.*;
  import sun.jvm.hotspot.types.*;
  import sun.jvm.hotspot.utilities.*;
  
*** 441,450 ****
--- 442,459 ----
          g1h.heapRegionIterate(lrc);
      } else if (heap instanceof EpsilonHeap) {
         EpsilonHeap eh = (EpsilonHeap) heap;
         liveRegions.add(eh.space().top());
         liveRegions.add(eh.space().bottom());
+     } else if (heap instanceof ZCollectedHeap) {
+         ZCollectedHeap zh = (ZCollectedHeap) heap;
+         zh.heap().pageTable().pageTableIterate(p -> {
+             if (p.refcount() > 0 ) {
+                 liveRegions.add(ZGlobals.ZAddressSpaceStart.addOffsetTo(p.start()));
+                 liveRegions.add(ZGlobals.ZAddressSpaceStart.addOffsetTo(p.top()));
+             }
+         });
      } else {
         if (Assert.ASSERTS_ENABLED) {
            Assert.that(false, "Unexpected CollectedHeap type: " + heap.getClass().getName());
         }
      }