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From Gary Tully <gary.tu...@gmail.com>
Subject Re: connection.createSession hangs up
Date Fri, 26 Jun 2009 19:09:21 GMT
A java client would typically use openwire over tcp, not stomp. There is
some support for a java api : see
http://activemq.apache.org/stomp.html#Stomp-JavaAPI and some more work has
been done on trunk for 5.3 but it is mainly used for junit testing the stomp
connector.

2009/6/17 Robert Schultz <robert@cosmicrealms.com>

>
> So I have an ActiveMQ server working just great. I can connect to it via
> python and send and receive messages over topics, no problems.
>
> But now I'm trying to create a Java program that will consume messages.
> Whenever it gets to connection.createSession the program hangs up forever.
>
> The code:
> ActiveMQConnectionFactory connectionFactory = new
> ActiveMQConnectionFactory();
> connectionFactory.setUserName("theUsername");
> connectionFactory.setPassword("thePassword");
> connectionFactory.setBrokerURL("stomp://my.server.com:61613");
>
> Connection connection = connectionFactory.createConnection();
> Session session = connection.createSession(false,
> Session.SESSION_TRANSACTED);
>
>
> I've tried several different things including specific topicConnections,
> etc.
> None of them work, once it hits createSession it hangs forever.
>
> If I pause the running process here is the stack trace:
> Unsafe.park(boolean, long) line: not available [native method] [local
> variables unavailable]
> LockSupport.park(Object) line: 158
> AbstractQueuedSynchronizer$ConditionObject.await() line: 1925
> ArrayBlockingQueue<E>.take() line: 317
> FutureResponse.getResult() line: 40
> ResponseCorrelator.request(Object) line: 80
> ActiveMQConnection.syncSendPacket(Command) line: 1233
> ActiveMQConnection.ensureConnectionInfoSent() line: 1339
> ActiveMQConnection.createSession(boolean, int) line: 298
>
>
> The active MQ thread has:
> SocketInputStream.socketRead0(FileDescriptor, byte[], int, int, int) line:
> not available [native method]
> SocketInputStream.read(byte[], int, int) line: 129
> TcpBufferedInputStream.fill() line: 50
> TcpBufferedInputStream.read() line: 58
> DataInputStream.readByte() line: 248
> StompWireFormat.readLine(DataInput, int, String) line: 186
> StompWireFormat.unmarshal(DataInput) line: 94
> TcpTransport.readCommand() line: 210
> TcpTransport.doRun() line: 202
> TcpTransport.run() line: 185
> Thread.run() line: 619 [local variables unavailable]
>
> Anyone have any ideas on what I can do?
>
> I'm running Stomp 5.2.0 on a Linux machine with Java 1.6
>
> I'd appreciate any and all help/advice/tips!
> --
> View this message in context:
> http://www.nabble.com/connection.createSession-hangs-up-tp24064922p24064922.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
>


-- 
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