[zeromq-dev] JZMQ socket.setIdentity() doesn't work with ZMQ 4.0.1

[Joel Lauener]

Hi,

After updating to jzmq-master and zeromq-4.0.1, we are experiencing problems with Socket.setIdentity() which fails with a nice "Invalid Argument" error. Digging a bit in the JZMQ code I found out that setting ZMQ_IDENTITY is disabled for ZMQ_VERSION_MAJOR > 3. What are the reason for that!? It seems to be there since a long time so most likely it had some use at some point.

FYI here is the guilty code snippet (same for getBytesSockop).

JNIEXPORT void JNICALL Java_org_zeromq_ZMQ_00024Socket_setBytesSockopt (JNIEnv *env,
                                                                        jobject obj,
                                                                        jint option,
                                                                        jbyteArray value)
{
    switch (option) {
#if (ZMQ_VERSION_MAJOR <= 3)
    case ZMQ_IDENTITY:
#endif
    case ZMQ_SUBSCRIBE:
    case ZMQ_UNSUBSCRIBE:
        ... some code ...
    default:
        raise_exception (env, EINVAL);
        return;
    }
}

Removing this #if condition the setIdentity call works again with ZMQ 4.0.1.

Cheers,
Joel.

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