--- old/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/g1/G1CollectedHeap.java	2019-02-15 20:10:19.387531975 +0100
+++ new/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/g1/G1CollectedHeap.java	2019-02-15 20:10:18.811531979 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2019, 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
@@ -32,8 +32,9 @@
 import sun.jvm.hotspot.debugger.Address;
 import sun.jvm.hotspot.gc.shared.CollectedHeap;
 import sun.jvm.hotspot.gc.shared.CollectedHeapName;
-import sun.jvm.hotspot.gc.shared.SpaceClosure;
+import sun.jvm.hotspot.gc.shared.LiveRegionsClosure;
 import sun.jvm.hotspot.gc.shared.PrintRegionClosure;
+import sun.jvm.hotspot.gc.shared.SpaceClosure;
 import sun.jvm.hotspot.memory.MemRegion;
 import sun.jvm.hotspot.runtime.VM;
 import sun.jvm.hotspot.runtime.VMObjectFactory;
@@ -138,6 +139,15 @@
     }
 
     @Override
+    public void liveRegionsIterate(LiveRegionsClosure closure) {
+        Iterator<HeapRegion> iter = heapRegionIterator();
+        while (iter.hasNext()) {
+            HeapRegion hr = iter.next();
+            closure.doLiveRegions(hr);
+        }
+    }
+
+    @Override
     public void printOn(PrintStream tty) {
         MemRegion mr = reservedRegion();