src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/z/ZCollectedHeap.java

*** 23,32 ****
--- 23,33 ----
   */
  
  package sun.jvm.hotspot.gc.z;
  
  import java.io.PrintStream;
+ import java.util.Iterator;
  
  import sun.jvm.hotspot.debugger.Address;
  import sun.jvm.hotspot.debugger.OopHandle;
  import sun.jvm.hotspot.gc.shared.CollectedHeap;
  import sun.jvm.hotspot.gc.shared.CollectedHeapName;
*** 119,131 ****
          }
      }
  
      @Override
      public void liveRegionsIterate(LiveRegionsClosure closure) {
!         // Operation (currently) not supported with ZGC. Print
!         // a warning and leave the list of live regions empty.
!         System.err.println("Warning: Operation not supported with ZGC");
      }
  
      @Override
      public BitMapInterface createBitMap(long size) {
          // Ignores the size
--- 120,134 ----
          }
      }
  
      @Override
      public void liveRegionsIterate(LiveRegionsClosure closure) {
!         Iterator<ZPage> iter = heap().pageTable().activePagesIterator();
!         while (iter.hasNext()) {
!             ZPage page = iter.next();
!             closure.doLiveRegions(page);
!         }
      }
  
      @Override
      public BitMapInterface createBitMap(long size) {
          // Ignores the size