static address handle_unsafe_access() {
  JavaThread* thread = JavaThread::current();
  address pc  = thread->saved_exception_pc();
  // pc is the instruction which we must emulate
  // doing a no-op is fine:  return garbage from the load
  // therefore, compute npc
  address npc = Assembler::locate_next_instruction(pc);

  // request an async exception
  thread->set_pending_unsafe_access_error();

  // return address of next instruction to execute
  return npc;
}