JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  {- -------------------------------------------
  (1) (デバッグ用の処理)
      (See: JNIWrapper)
      ---------------------------------------- -}

      JNIWrapper("GetObjectClass");

  {- -------------------------------------------
  (1) (DTrace のフック点)
      ---------------------------------------- -}

      DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  {- -------------------------------------------
  (1) Klass::java_mirror() で java mirror を取得し, JNI Handle 化しておく.
      ---------------------------------------- -}

      klassOop k = JNIHandles::resolve_non_null(obj)->klass();
      jclass ret =
        (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());

  {- -------------------------------------------
  (1) (DTrace のフック点)
      ---------------------------------------- -}

      DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  {- -------------------------------------------
  (1) 結果をリターン
      ---------------------------------------- -}

      return ret;
    JNI_END