--- old/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/z/ZHeap.java	2018-07-19 22:49:38.876536136 +0900
+++ new/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/z/ZHeap.java	2018-07-19 22:49:38.668534732 +0900
@@ -60,7 +60,7 @@
         return (ZPageAllocator)VMObjectFactory.newObject(ZPageAllocator.class, pageAllocatorAddr);
     }
 
-    ZPageTable pageTable() {
+    public ZPageTable pageTable() {
         return (ZPageTable)VMObjectFactory.newObject(ZPageTable.class, addr.addOffsetTo(pageTableFieldOffset));
     }