src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/epsilon/EpsilonHeap.java

*** 64,78 ****
--- 64,93 ----
    @Override
    public CollectedHeapName kind() {
      return CollectedHeapName.EPSILON;
    }
  
+   @Override
+   public long capacity() {
+     return space.capacity();
+   }
+ 
+   @Override
+   public long used() {
+     return space.used();
+   }
+ 
    public ContiguousSpace space() {
      return space;
    }
  
    @Override
+   public void liveRegionsIterate(LiveRegionsClosure closure) {
+     closure.doLiveRegions(space());
+   }
+ 
+   @Override
    public void printOn(PrintStream tty) {
       MemRegion mr = reservedRegion();
       tty.println("Epsilon heap");
       tty.println(" reserved:  [" + mr.start() + ", " + mr.end() + "]");
       tty.println(" committed: [" + virtualSpace.low() + ", " + virtualSpace.high() + "]");