--- old/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/g1/G1CollectedHeap.java	2019-02-13 16:34:55.054271611 +0100
+++ new/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/g1/G1CollectedHeap.java	2019-02-13 16:34:54.670271624 +0100
@@ -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();