NetSocket write exception when network becomes unreachable

Question

I am using NetSocket class to write data to a TCP server. When the TCP server gracefully shuts down, socket's close handler is invoked and everything is working correctly. However, when I cut off the network during execution, I get success on write handler. In pure Java I would get something like this java.net.SocketException: Broken pipe.

Is this a bug and how to implement this? I would like to avoid implementing my own timeout and rather have the info when the socket is abruptly closed.

This is the code I'm using for writing:

socket.write(requestCommandBuffer, writeBuffer -> {
    if (writeBuffer.succeeded()) {
        //I always get success here, even when other side abruptly closes the socket
        LOG.info("Successful write.");
    } else {
        LOG.error("Failed to write.");
    }
});