void JvmtiExport::expose_single_stepping(JavaThread *thread) {

  {- -------------------------------------------
  (1) thread 引数に対応する JvmtiThreadState に対して
      JvmtiThreadState::clear_hide_single_stepping() を呼び出すだけ.
      ---------------------------------------- -}

      JvmtiThreadState *state = thread->jvmti_thread_state();
      if (state != NULL) {
        state->clear_hide_single_stepping();
      }
    }