src/hotspot/share/gc/serial/markSweep.cpp

*** 130,139 ****
--- 130,141 ----
    assert(!Universe::heap()->is_in(p),
           "roots shouldn't be things within the heap");
    T heap_oop = RawAccess<>::oop_load(p);
    if (!CompressedOops::is_null(heap_oop)) {
      oop obj = CompressedOops::decode_not_null(heap_oop);
+     assert_object_is_in_heap(p, obj);
+ 
      if (!obj->mark_raw().is_marked()) {
        mark_object(obj);
        follow_object(obj);
      }
    }