RC9/qpid/java/systests/src/main/java/org/apache/qpid/client/MessageListenerMultiConsumerImmediatePrefetch.java

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 *  to you under the Apache License, Version 2.0 (the
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 *
 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.qpid.client;

/**
 * QPID-293 Setting MessageListener after connection has started can cause messages to be "lost" on a internal delivery
 * queue <p/> The message delivery process: Mina puts a message on _queue in AMQSession and the dispatcher thread
 * take()s from here and dispatches to the _consumers. If the _consumer1 doesn't have a message listener set at
 * connection start then messages are stored on _synchronousQueue (which needs to be > 1 to pass JMS TCK as multiple
 * consumers on a session can run in any order and a synchronous put/poll will block the dispatcher). <p/> When setting
 * the message listener later the _synchronousQueue is just poll()'ed and the first message delivered the remaining
 * messages will be left on the queue and lost, subsequent messages on the session will arrive first.
 */
public class MessageListenerMultiConsumerImmediatePrefetch extends MessageListenerMultiConsumerTest
{
    protected void setUp() throws Exception
    {
        System.setProperty(AMQSession.IMMEDIATE_PREFETCH, "true");
        super.setUp();
    }

    public static junit.framework.Test suite()
    {
        return new junit.framework.TestSuite(MessageListenerMultiConsumerImmediatePrefetch.class);
    }
}