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

@@ -64,10 +64,20 @@
   @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