javax.jms.MessageConsumer hangs on receive when consumer closed

Question

According to the javadoc, if I call receive() on a javax.jms.MessageConsumer it will block indefinitely until a message is produced or until the message consumer is closed.

I have a thread in which a receive() is being called. As part of the thread shutdown I am calling close(), but the consumer still blocks in receive() and so the thread will not shutdown. The gist of my code is:

public String receiveMessage() {
...
...
   System.out.println("About to receive")
   TextMessage message = (TextMessage) consumer.receive();
   System.out.println("No longer receiving")
...
...
}

public void stop() {
    try {
        if (consumer != null) {
            consumer.close();
        }
    } catch (JMSException ex) {
        throw new IllegalStateException(ex);
    }
}

In the debugger I can see close() being called, but the receive still blocks. If I use the receive() method with a timeout it will block until the timeout expires.

Everything looks right to me, hopefully someone can tell me what I am doing wrong.

Answer 1

I've sorted the problem, I wasn't doing a connection.start() anywhere. Once I put this in, the MessageConsumer.receive() stopped blocking when I closed it and everything worked as I had expected.

Thanks for your suggestions.