src/share/vm/runtime/handles.cpp

*** 43,53 ****
  
  #ifdef ASSERT
  oop* HandleArea::allocate_handle(oop obj) {
    assert(_handle_mark_nesting > 1, "memory leak: allocating handle outside HandleMark");
    assert(_no_handle_mark_nesting == 0, "allocating handle inside NoHandleMark");
!   assert(obj->is_oop(), "sanity check");
    return real_allocate_handle(obj);
  }
  
  Handle::Handle(Thread* thread, oop obj) {
    assert(thread == Thread::current(), "sanity check");
--- 43,53 ----
  
  #ifdef ASSERT
  oop* HandleArea::allocate_handle(oop obj) {
    assert(_handle_mark_nesting > 1, "memory leak: allocating handle outside HandleMark");
    assert(_no_handle_mark_nesting == 0, "allocating handle inside NoHandleMark");
!   assert(obj->is_oop(), err_msg("not an oop: " INTPTR_FORMAT, (intptr_t*) obj));
    return real_allocate_handle(obj);
  }
  
  Handle::Handle(Thread* thread, oop obj) {
    assert(thread == Thread::current(), "sanity check");