現在作成中の

/** Message を初期化します */
public Message(Type type,
    Receiver rcv, List prms, Object env_self, Object env_param,
    Receiver sendto, Object result, Object env_sendto_self, Object env_sendto_param)
{
    this.type                = type;
    this.receiver            = rcv;
    this.params              = prms;
    this.env_self            = env_self;
    this.env_param           = env_param;
    this.sendto              = sendto;
    this.result              = result;
    this.env_sendto_self     = env_sendto_self;
    this.env_sendto_param    = env_sendto_param;
}

こんな重量オブジェクトが、毎秒数百個作成されるのか (；´Д`A ```