JNIEXPORT void JNICALL
Java_sun_management_MemoryPoolImpl_setPoolCollectionSensor
  (JNIEnv *env, jobject pool, jobject sensor)
{

  {- -------------------------------------------
  (1) jmm_SetPoolSensor() を呼び出すだけ.
      ---------------------------------------- -}

        jmm_interface->SetPoolSensor(env, pool,
                                     JMM_COLLECTION_USAGE_THRESHOLD_HIGH, sensor);
    }