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https://issues.apache.org/jira/browse/AMQ-4576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13685764#comment-13685764
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Pedro Marques commented on AMQ-4576:
------------------------------------
Tested the new version and it appears corrected.
> MQTT BlockingConnection.receive fails when subscribing multiple topics
> ----------------------------------------------------------------------
>
> Key: AMQ-4576
> URL: https://issues.apache.org/jira/browse/AMQ-4576
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.8.0
> Reporter: Pedro Marques
> Assignee: Timothy Bish
> Fix For: 5.9.0
>
>
> When more than one topic is supplied to BlockingConnection.subscribe the
> BlockingConnection.receive fails and the following exception is thrown:
> {code}
> java.io.IOException: Could not connect: CONNECTION_REFUSED_SERVER_UNAVAILABLE
> at
> org.fusesource.mqtt.client.CallbackConnection$LoginHandler$1.onTransportCommand(CallbackConnection.java:331)
> at
> org.fusesource.hawtdispatch.transport.TcpTransport.drainInbound(TcpTransport.java:659)
> at
> org.fusesource.hawtdispatch.transport.SslTransport.drainInbound(SslTransport.java:264)
> at
> org.fusesource.hawtdispatch.transport.TcpTransport$6.run(TcpTransport.java:538)
> at
> org.fusesource.hawtdispatch.internal.NioDispatchSource$3.run(NioDispatchSource.java:209)
> at
> org.fusesource.hawtdispatch.internal.SerialDispatchQueue.run(SerialDispatchQueue.java:100)
> at
> org.fusesource.hawtdispatch.internal.pool.SimpleThread.run(SimpleThread.java:77)
> {code}
> On the server shows the following messages:
> {code}
> 2013-06-06 15:06:00,125 WARN
> [org.apache.activemq.transport.mqtt.MQTTProtocolConverter] (ActiveMQ
> BrokerService[localhost] Task-1) Exception occurred processing:
> null: javax.jms.JMSException: Durable consumer is in use for client:
> 6056@3232261834SOC and subscriptionName: 6056@3232261834SOC
> 2013-06-06 15:06:00,130 WARN
> [org.apache.activemq.broker.TransportConnection] (ActiveMQ Transport:
> tcp:///127.0.0.1:53389@1883) Failed to add Connection
> ID:LTD-SFW004-53303-1370527418664-2:14, reason:
> javax.jms.InvalidClientIDException: Broker: localhost - Client:
> 6056@3232261834SOC already connected from tcp://127.0.0.1:53388
> 2013-06-06 15:06:00,130 WARN
> [org.apache.activemq.broker.TransportConnection.Transport] (ActiveMQ
> Transport: tcp:///127.0.0.1:53389@1883) Transport Connection to:
> tcp://127.0.0.1:53389 failed: java.io.IOException: Broker: localhost -
> Client: 6056@3232261834SOC already connected from tcp://127.0.0.1:53388
> 2013-06-06 15:06:00,130 ERROR
> [pt.intellicare.onecare.mqtt.OneCareFuseMqttClient]
> (DefaultQuartzScheduler_Worker-8) Problem receiving mqtt messages:
> java.io.IOException: Could not connect: CONNECTION_REFUSED_SERVER_UNAVAILABLE
> at
> org.fusesource.mqtt.client.CallbackConnection$LoginHandler$1.onTransportCommand(CallbackConnection.java:331)
> [:1.5-SNAPSHOT]
> at
> org.fusesource.hawtdispatch.transport.TcpTransport.drainInbound(TcpTransport.java:659)
> [:1.17]
> at
> org.fusesource.hawtdispatch.transport.TcpTransport$6.run(TcpTransport.java:538)
> [:1.17]
> at
> org.fusesource.hawtdispatch.internal.NioDispatchSource$3.run(NioDispatchSource.java:209)
> [:1.17]
> at
> org.fusesource.hawtdispatch.internal.SerialDispatchQueue.run(SerialDispatchQueue.java:100)
> [:1.17]
> at
> org.fusesource.hawtdispatch.internal.pool.SimpleThread.run(SimpleThread.java:77)
> [:1.17]
> {code}
> Code example:
> {code}
> MQTT = new MQTT();
> mqtt.setHost(url);
> mqtt.setClientId(clientId);
> mqtt.setUserName(user);
> mqtt.setPassword(password);
> mqtt.setCleanSession(false);
> BlockingConnection connection = mqtt.blockingConnection();
> connection.connect();
> Topic[] topics = {new Topic("TopicA", QoS.EXACTLY_ONCE), new Topic("TopicB",
> QoS.EXACTLY_ONCE)};
> byte[] qoses = connection.subscribe(topics);
> while (true) {
> Message message = connection.receive();
> byte[] payload = message.getPayload();
> String messageContent = new String(payload);
> System.out.println("Received message from topic: " + message.getTopic() +
> " Message content: " + messageContent);
> message.ack();
> }
> {code}
> The test failed when using the current fusesource client (1.5) on ActiveMQ
> 5.9, on Mosquitto mqtt the code works correctly.
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