--- old/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/z/ZAddress.java	2019-02-13 16:35:01.950271371 +0100
+++ new/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/z/ZAddress.java	2019-02-13 16:35:01.562271384 +0100
@@ -61,7 +61,7 @@
             value |= ZGlobals.ZAddressSpaceStart;
         }
 
-        return ZOop.to_address(value);
+        return ZUtils.longToAddress(value);
     }
 
     static Address good(Address value) {