src/share/vm/gc_implementation/g1/g1ParScanThreadState.cpp

@@ -224,10 +224,12 @@
       }
     }
   }
 
   assert(obj_ptr != NULL, "when we get here, allocation should have succeeded");
+  assert(_g1h->is_in_reserved(obj_ptr), "Allocated memory should be in the heap");
+
 #ifndef PRODUCT
   // Should this evacuation fail?
   if (_g1h->evacuation_should_fail()) {
     // Doing this after all the allocation attempts also tests the
     // undo_allocation() method too.