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https://issues.apache.org/jira/browse/QPID-6587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rob Godfrey reassigned QPID-6587:
---------------------------------
Assignee: Rob Godfrey
> Qpid crash when trying to convert a message
> -------------------------------------------
>
> Key: QPID-6587
> URL: https://issues.apache.org/jira/browse/QPID-6587
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.32
> Environment: Linux localhost 3.17.8-gentoo-r1 #6 SMP Sat May 16
> 15:11:24 GST 2015 x86_64 Intel(R) Core(TM) i5-2540M CPU @ 2.60GHz
> GenuineIntel GNU/Linux
> Reporter: Mansour Al Akeel
> Assignee: Rob Godfrey
> Priority: Blocker
> Labels: broker, convert, message, qpid
> Fix For: 6.0 [Java]
>
>
> Related Issues: QPID-5536
> This issue may be related to converting message format.
> To generate this problem, create a new port (ie AMQP_0_10) and give it
> ampq_0-10, assign it another port number (for example 5673).
> Setup the security provider to Anonymous (create a provider for this).
> Create a queue "examples".
> Send few messages to "examples" to AMQP port.
> Try to read from AMQP_0_10.
> The broker will crash end exit.
> In my case, the writing was done from Java, and reading from Python.
> These code can be used:
> For maven:
> <dependency>
> <groupId>org.apache.qpid</groupId>
> <artifactId>qpid-jms-client</artifactId>
> <version>0.2.0</version>
> </dependency>
> import java.util.Properties;
> import javax.jms.Connection;
> import javax.jms.ConnectionFactory;
> import javax.jms.DeliveryMode;
> import javax.jms.Destination;
> import javax.jms.ExceptionListener;
> import javax.jms.JMSException;
> import javax.jms.Message;
> import javax.jms.MessageProducer;
> import javax.jms.Session;
> import javax.jms.TextMessage;
> import javax.naming.Context;
> import javax.naming.InitialContext;
> public class Hello
> {
> private static final String USER = "guest";
> private static final String PASSWORD = "guest";
> public static void main(String[] args)
> {
> try
> {
> Properties prop = new Properties();
> prop.put("java.naming.factory.initial",
> "org.apache.qpid.jms.jndi.JmsInitialContextFactory");
> prop.put("connectionfactory.localhost",
> "amqp://localhost:5672/");
> prop.put("queue.myQueue", "examples");
> Context context = new InitialContext(prop);
> ConnectionFactory factory = (ConnectionFactory)
> context.lookup("localhost");
> Destination queue = (Destination)
> context.lookup("myQueue");
> Connection connection = factory.createConnection(USER,
> PASSWORD);
> connection.setExceptionListener(new
> MyExceptionListener());
> connection.start();
> Session session = connection.createSession(false,
> Session.AUTO_ACKNOWLEDGE);
> for (int i = 0; i <= 10; i++)
> {
> MessageProducer producer =
> session.createProducer(queue);
> TextMessage message =
> session.createTextMessage("Hello world from Java " + i + " !");
> Thread.sleep(1000L);
> producer.send(message,
> DeliveryMode.NON_PERSISTENT, Message.DEFAULT_PRIORITY,
> Message.DEFAULT_TIME_TO_LIVE);
> }
> connection.close();
> } catch (Exception exp)
> {
> System.out.println("Caught exception, exiting.");
> exp.printStackTrace();
> System.exit(1);
> }
> }
> private static class MyExceptionListener implements ExceptionListener
> {
> public void onException(JMSException exception)
> {
> System.out.println("Connection ExceptionListener fired,
> exiting.");
> exception.printStackTrace();
> System.exit(1);
> }
> }
> }
> #!/usr/bin/env python
> from qpid.messaging import *
> url = "localhost:5673"
> queue = "examples"
> connection = Connection(url)
> try:
> connection.open()
> session = connection.session()
> while True:
> receiver = session.receiver(queue)
> message = receiver.fetch()
> print "got message"
> print message.content
> #session.acknowledge()
> except MessagingError,m:
> print "exeption: " , m
> connection.close()
> Note: If the queue is empty and we try to read, no writing can be done. The
> client (java), will throw an exception:
> javax.jms.JMSException: java.lang.NullPointerException [condition =
> amqp:connection:forced]
> at
> org.apache.qpid.jms.provider.amqp.AmqpAbstractResource.getRemoteError(AmqpAbstractResource.java:234)
> at
> org.apache.qpid.jms.provider.amqp.AmqpAbstractResource.remotelyClosed(AmqpAbstractResource.java:170)
> at
> org.apache.qpid.jms.provider.amqp.AmqpAbstractResource.processRemoteClose(AmqpAbstractResource.java:291)
> at
> org.apache.qpid.jms.provider.amqp.AmqpProvider.processUpdates(AmqpProvider.java:734)
> at
> org.apache.qpid.jms.provider.amqp.AmqpProvider.access$1500(AmqpProvider.java:87)
> at
> org.apache.qpid.jms.provider.amqp.AmqpProvider$16.run(AmqpProvider.java:667)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> If the queue has messages, the broker will crash when we consuming messages
> (python).
> The following trace generated by the broker:
> 2015-06-13 11:48:57,262 DEBUG [IoReceiver - /127.0.0.1:48469]
> (transport.Connection) - RECV: [conn:29464cc5] ch=0
> MessageFlow(destination=0, unit=MESSAGE, value=1)
> 2015-06-13 11:48:57,262 DEBUG [IoReceiver - /127.0.0.1:48469]
> (transport.Session) - identify: ch=0, commandId=5
> 2015-06-13 11:48:57,262 DEBUG [IoReceiver - /127.0.0.1:48469]
> (transport.Session) - ssn:"fb01ce9e-fc06-455a-abd7-c1c7df6b8664:0" ch=0
> processed([5,5]) 4 4
> 2015-06-13 11:48:57,262 DEBUG [IoReceiver - /127.0.0.1:48469]
> (transport.Session) - ssn:"fb01ce9e-fc06-455a-abd7-c1c7df6b8664:0" processed:
> {[0, 4]}
> 2015-06-13 11:48:57,262 DEBUG [pool-1-thread-15] (transport.Connection) -
> FLUSH: [conn:29464cc5]
> 2015-06-13 11:48:57,262 DEBUG [pool-1-thread-15] (transport.Connection) -
> FLUSH: [conn:29464cc5]
> ########################################################################
> #
> # Unhandled Exception java.lang.NullPointerException in Thread
> pool-1-thread-15
> #
> # Exiting
> #
> ########################################################################
> java.lang.NullPointerException
> at java.util.HashMap.putMapEntries(HashMap.java:500)
> at java.util.HashMap.<init>(HashMap.java:489)
> at
> org.apache.qpid.server.protocol.v1_0.MessageMetaData_1_0$MessageHeader_1_0.getHeadersAsMap(MessageMetaData_1_0.java:586)
> at
> org.apache.qpid.server.protocol.converter.v0_10_v1_0.MessageConverter_1_0_to_v0_10.convertMetaData(MessageConverter_1_0_to_v0_10.java:181)
> at
> org.apache.qpid.server.protocol.converter.v0_10_v1_0.MessageConverter_1_0_to_v0_10.convertToStoredMessage(MessageConverter_1_0_to_v0_10.java:70)
> at
> org.apache.qpid.server.protocol.converter.v0_10_v1_0.MessageConverter_1_0_to_v0_10.convert(MessageConverter_1_0_to_v0_10.java:60)
> at
> org.apache.qpid.server.protocol.converter.v0_10_v1_0.MessageConverter_1_0_to_v0_10.convert(MessageConverter_1_0_to_v0_10.java:42)
> at
> org.apache.qpid.server.protocol.v0_10.ConsumerTarget_0_10.send(ConsumerTarget_0_10.java:218)
> at
> org.apache.qpid.server.queue.QueueConsumerImpl.send(QueueConsumerImpl.java:469)
> at
> org.apache.qpid.server.queue.AbstractQueue.deliverMessage(AbstractQueue.java:1323)
> at
> org.apache.qpid.server.queue.AbstractQueue.attemptDelivery(AbstractQueue.java:2069)
> at
> org.apache.qpid.server.queue.AbstractQueue.processQueue(AbstractQueue.java:2237)
> at org.apache.qpid.server.queue.QueueRunner$1.run(QueueRunner.java:77)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:360)
> at org.apache.qpid.server.queue.QueueRunner.run(QueueRunner.java:68)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> 2015-06-13 11:48:57,264 ERROR [pool-1-thread-15] (server.Main) - Uncaught
> exception, shutting down.
> java.lang.NullPointerException
> at java.util.HashMap.putMapEntries(HashMap.java:500)
> at java.util.HashMap.<init>(HashMap.java:489)
> at
> org.apache.qpid.server.protocol.v1_0.MessageMetaData_1_0$MessageHeader_1_0.getHeadersAsMap(MessageMetaData_1_0.java:586)
> at
> org.apache.qpid.server.protocol.converter.v0_10_v1_0.MessageConverter_1_0_to_v0_10.convertMetaData(MessageConverter_1_0_to_v0_10.java:181)
> at
> org.apache.qpid.server.protocol.converter.v0_10_v1_0.MessageConverter_1_0_to_v0_10.convertToStoredMessage(MessageConverter_1_0_to_v0_10.java:70)
> at
> org.apache.qpid.server.protocol.converter.v0_10_v1_0.MessageConverter_1_0_to_v0_10.convert(MessageConverter_1_0_to_v0_10.java:60)
> at
> org.apache.qpid.server.protocol.converter.v0_10_v1_0.MessageConverter_1_0_to_v0_10.convert(MessageConverter_1_0_to_v0_10.java:42)
> at
> org.apache.qpid.server.protocol.v0_10.ConsumerTarget_0_10.send(ConsumerTarget_0_10.java:218)
> at
> org.apache.qpid.server.queue.QueueConsumerImpl.send(QueueConsumerImpl.java:469)
> at
> org.apache.qpid.server.queue.AbstractQueue.deliverMessage(AbstractQueue.java:1323)
> at
> org.apache.qpid.server.queue.AbstractQueue.attemptDelivery(AbstractQueue.java:2069)
> at
> org.apache.qpid.server.queue.AbstractQueue.processQueue(AbstractQueue.java:2237)
> at org.apache.qpid.server.queue.QueueRunner$1.run(QueueRunner.java:77)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:360)
> at org.apache.qpid.server.queue.QueueRunner.run(QueueRunner.java:68)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> 2015-06-13 11:48:57,265 INFO [pool-1-thread-16] (subscription.state) -
> [Queue Delivery] [sub:1(vh(/default)/qu(examples)] SUB-1003 : State :
> SUSPENDED
> The reciever will produce this error (python):
> exeption: connection aborted
> Traceback (most recent call last):
> File "examples/api/hello", line 27, in <module>
> connection.close()
> File "<string>", line 6, in close
> File
> "/home/mansour/workspace/sources/qpid-python-0.32/qpid/messaging/endpoints.py",
> line 345, in close
> ssn.close(timeout=timeout)
> File "<string>", line 6, in close
> File
> "/home/mansour/workspace/sources/qpid-python-0.32/qpid/messaging/endpoints.py",
> line 795, in close
> self.sync(timeout=timeout)
> File "<string>", line 6, in sync
> File
> "/home/mansour/workspace/sources/qpid-python-0.32/qpid/messaging/endpoints.py",
> line 786, in sync
> if not self._ewait(lambda: not self.outgoing and not self.acked,
> timeout=timeout):
> File
> "/home/mansour/workspace/sources/qpid-python-0.32/qpid/messaging/endpoints.py",
> line 596, in _ewait
> result = self.connection._ewait(lambda: self.error or predicate(),
> timeout)
> File
> "/home/mansour/workspace/sources/qpid-python-0.32/qpid/messaging/endpoints.py",
> line 234, in _ewait
> self.check_error()
> File
> "/home/mansour/workspace/sources/qpid-python-0.32/qpid/messaging/endpoints.py",
> line 227, in check_error
> raise e
> qpid.messaging.exceptions.ConnectionError: connection aborted
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