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From "Hauke Rabe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CAMEL-6459) ReplyManager holds a reference to the first calling Bundle classloader
Date Fri, 14 Jun 2013 11:56:19 GMT
Hauke Rabe created CAMEL-6459:
---------------------------------

             Summary: ReplyManager holds a reference to the first calling Bundle classloader
                 Key: CAMEL-6459
                 URL: https://issues.apache.org/jira/browse/CAMEL-6459
             Project: Camel
          Issue Type: Bug
          Components: camel-jms
    Affects Versions: 2.10.4
         Environment: Apache karaf 2.3.1
            Reporter: Hauke Rabe


h3. Source
The initialization of the ReplyManager is triggerd by the first processInOut method call at
the JmsProducer.

The concrete instance of the ReplyManager creates on startup an AbstractMessageListenerContainer.
The concrete listener container is generally a DefaultMessageListenerContainer which starts
a new AsyncMessageListenerInvoker Thread. 

h3. OSGI Scenario
In an osgi envrironment this AsyncMessageListenerInvoker Thread has a class loader reference
to the bundle who is triggerd by the first processInOut method call at the JmsProducer.

Let the calling bundle (A) be another bundle as bundle (B) which contains the JmsProducer
the AsyncMessageListenerInvoker Thread holds a class loader reference to bundle (A).

Scenario:
* Bundle (A) calls a java service of Bundle (B) 
* Bundle (B) sends a jms message
* Bundle (B) receives a response of the jms message
* Bundle (B) returns the java service call to Bundle (A)

h3. Problem
At this point everything is alright but when Bundle (A) is undeployed and another Bundle (C)
calls a java service of Bundle (B) the AsyncMessageListenerInvoker Thread has a class loader
problem.



h3. StackTrace
BundleImpl.loadClass(String) line: 926
BundleClassLoader.findClass(String) line: 176
BundleClassLoader.loadClass(String, boolean) line: 194
BundleClassLoader(ClassLoader).loadClass(String) line: 248
Class<T>.forName0(String, boolean, ClassLoader) line: not available [native method]
Class<T>.forName(String, boolean, ClassLoader) line: 247
ClassLoadingAwareObjectInputStream.load(String, ClassLoader...) line: 77
ClassLoadingAwareObjectInputStream.resolveClass(ObjectStreamClass) line: 46
ClassLoadingAwareObjectInputStream(ObjectInputStream).readNonProxyDesc(boolean) line: 1574
ClassLoadingAwareObjectInputStream(ObjectInputStream).readClassDesc(boolean) line: 1495
ClassLoadingAwareObjectInputStream(ObjectInputStream).readOrdinaryObject(boolean) line: 1731
ClassLoadingAwareObjectInputStream(ObjectInputStream).readObject0(boolean) line: 1328
ClassLoadingAwareObjectInputStream(ObjectInputStream).readObject() line: 350
ActiveMQObjectMessage.getObject() line: 185
ActiveMQObjectMessage.toString() line: 226
MessageFormatter.safeObjectAppend(StringBuffer, Object) line: 304
MessageFormatter.deeplyAppendParameter(StringBuffer, Object, Map) line: 276
MessageFormatter.arrayFormat(String, Object[]) line: 230
MessageFormatter.format(String, Object, Object) line: 152
Slf4jLogger.debug(String, Object, Object) line: 300
PersistentQueueReplyManager(ReplyManagerSupport).onMessage(Message) line: 110
ExclusivePersistentQueueMessageListenerContainer(AbstractMessageListenerContainer).doInvokeListener(MessageListener,
Message) line: 560
ExclusivePersistentQueueMessageListenerContainer(AbstractMessageListenerContainer).invokeListener(Session,
Message) line: 498
ExclusivePersistentQueueMessageListenerContainer(AbstractMessageListenerContainer).doExecuteListener(Session,
Message) line: 467
ExclusivePersistentQueueMessageListenerContainer(AbstractPollingMessageListenerContainer).doReceiveAndExecute(Object,
Session, MessageConsumer, TransactionStatus) line: 325
ExclusivePersistentQueueMessageListenerContainer(AbstractPollingMessageListenerContainer).receiveAndExecute(Object,
Session, MessageConsumer) line: 263
DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener() line: 1058
DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop() line: 1050
DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run() line: 947
Thread.run() line: 662 

h3. JMS Error
<suppressedExceptions class="java.util.Collections$UnmodifiableRandomAccessList" resolves-to="java.util.Collections$UnmodifiableList"><c
class="list"/><list reference="../c"/></suppressedExceptions><undeclaredThrowable
class="org.apache.camel.InvalidPayloadException"><detailMessage>No body available
of type: TransactionServiceResponse but has value: [B@7b9554f9 of type: byte[] on: Message:
&lt;?xml version='1.0' encoding='UTF-8'?>&lt;org.apache.camel.component.bean.BeanInvocation>&

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