java zmq发送报错，UnsatisfiedLinkError: org.zeromq.ZMQ$Socket.send([BII)Z？

Question

在尝试在java里使用zmq的时候，调用zmq.socket.send("msg")时爆出了unsatisifiedLinkedError异常，具体报错内容如下

Exception in thread "main" java.lang.UnsatisfiedLinkError: org.zeromq.ZMQ$Socket.send([BII)Z
    at org.zeromq.ZMQ$Socket.send(Native Method)
    at org.zeromq.ZMQ$Socket.send(ZMQ.java:1236)
    at org.zeromq.ZMQ$Socket.sendMore(ZMQ.java:1262)

触发异常的就是一句sendMore或send：

        int i;
        for (i = 0; i < msgParts.length - 1; i++) {
            mSendSocket.sendMore(msgParts[i]);
        }
        mSendSocket.send(msgParts[i]);

socket初始化相关代码如下：

        mContext = ZMQ.context(2);
        String url = "tcp://" + mIp + ":";
        mIdentity = UUID.randomUUID().toString();

        mSendSocket = mContext.socket(ZMQ.PUSH);
        mSendSocket.setLinger(0);
        mSendSocket.connect(url + mPort);

ip和port参数如下：

    private int mPort = 5555;
    private String mIp = "localhost";

看报错是本地方法出错，但是跟踪不下去。
网上搜了半天，360、stackoverflow、google都没找到靠谱的方法。如有大佬解决过此类错误，还请不吝赐教。