--- old/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/shenandoah/ShenandoahHeap.java	2019-02-11 09:03:33.411718669 +0100
+++ new/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/shenandoah/ShenandoahHeap.java	2019-02-11 09:03:33.019718682 +0100
@@ -64,6 +64,12 @@
     }
 
     @Override
+    public long capacity() {
+    	// FIXME
+    	return 0;
+    }
+
+    @Override
     public long used() {
         return used.getValue(addr);
     }