if (_state == STATE_END) return;
    public void complete() throws IOException    {        if (_state == STATE_END) return;        if (_state == STATE_HEADER)        {            throw new IllegalStateException("State==HEADER");        }        if (_contentLength >= 0 && _contentLength != _contentWritten && !_head)        {            if (_endp.isOpen())                Log.warn("ContentLength written=="+_contentWritten+" != contentLength=="+_contentLength);            _close = true;        }    }