// Must be JNI_ENTRY (with HandleMark)

JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

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

      JNIWrapper("jni_DeleteWeakGlobalRef");

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

      DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  {- -------------------------------------------
  (1) JNIHandles::destroy_weak_global() で
      JNIHandles::_weak_global_handles 内の該当する箇所に JNIHandles::_deleted_handle の値を書き込む.
      ---------------------------------------- -}

      JNIHandles::destroy_weak_global(ref);

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

      DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);
    JNI_END