agent/src/share/classes/sun/jvm/hotspot/utilities/HeapGXLWriter.java

rev 146 : [mq]: mixa.layout.patch

@@ -174,10 +174,11 @@
                 writeAttribute("class-name", "string", name.asString());
             }
             if (isInstanceKlass) {
                 // write object-size as an attribute
                 long sizeInBytes = reflectedType.getLayoutHelper();
+                sizeInBytes &= ~Bits.rightNBits(Klass.LH_SIZE_LOW_BITS);
                 writeAttribute("object-size", "int",
                                Long.toString(sizeInBytes));
                 // write static fields of this class.
                 writeObjectFields(reflectedType);
             }