NoClassDefFound Exception connecting to JBM 1.4.0

[dkuanwang]

Hi,

I am writing a standalone java client to connect to JBM 1.4.0 queue.

Following is my code:

Properties p = new Properties();
p.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
p.put(Context.URL_PKG_PREFIXES, "org.jboss.naming: org.jnp.interfaces");
p.put(Context.PROVIDER_URL, "jnp://host:port");

Context jndiContext = new InitialContext(p);

//get reference to the ConnectionFactory
ConnectionFactory connectionFactory =
(ConnectionFactory) jndiContext.lookup("ClusteredConnectionFactory");

//get reference to JMS destination
javax.jms.Queue destination =
(javax.jms.Queue) jndiContext.lookup("queue/queue1");

Connection connection = connectionFactory.createConnection("user","pwd");

I am getting exception at the createConnection:
Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class org.jboss.remoting.util.TimerUtil
at org.jboss.remoting.ConnectionValidator.start(ConnectionValidator.java:503)
at org.jboss.remoting.ConnectionValidator.addConnectionListener(ConnectionValidator.java:345)
at org.jboss.remoting.Client.addConnectionListener(Client.java:385)
at org.jboss.remoting.Client.addConnectionListener(Client.java:355)
at org.jboss.remoting.Client.addConnectionListener(Client.java:343)
at org.jboss.jms.client.remoting.JMSRemotingConnection.addConnectionListener(JMSRemotingConnection.java:462)
at org.jboss.jms.client.container.StateCreationAspect.handleCreateConnectionDelegate(StateCreationAspect.java:101)
at org.jboss.aop.advice.org.jboss.jms.client.container.StateCreationAspect_z_handleCreateConnectionDelegate_1027049.invoke(StateCreationAspect_z_handleCreateConnectionDelegate_1027049.java)
at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.invokeNext(ClientConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.java)
at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.createConnectionDelegate(ClientConnectionFactoryDelegate.java)
at org.jboss.jms.client.container.ClusteringAspect.handleCreateConnectionDelegate(ClusteringAspect.java:134)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.aop.advice.PerInstanceAdvice.invoke(PerInstanceAdvice.java:122)
at org.jboss.jms.client.delegate.ClientClusteredConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.invokeNext(ClientClusteredConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.java)
at org.jboss.jms.client.delegate.ClientClusteredConnectionFactoryDelegate.createConnectionDelegate(ClientClusteredConnectionFactoryDelegate.java)
at org.jboss.jms.client.JBossConnectionFactory.createConnectionInternal(JBossConnectionFactory.java:205)
at org.jboss.jms.client.JBossConnectionFactory.createConnection(JBossConnectionFactory.java:87)
at jmsremoteclient.TestMessageProducer.main(TestMessageProducer.java:44)

I have included the jbossall-client.jar in the classpath so I am not sure why it's getting class definition not found exception.

My classpath is as followed:
jboss-aop.jar
jboss-remoting.jar
javassist.jar
trove.jar
jbossall-client.jar
jboss-mdr.jar

Can someone also explain how the JBM class loading works with AOP , jboss-remoting.jar and jbossall-client.jar?

thanks in advance,
David

[gaohoward]

JBM 1.4 doesn't have any special class loading to work with AOP, jboss-remoting.jar etc. Take a look at the examples that comes with jbm 1.4. The correct classpath can be found in the build.xml files.

[dkuanwang]

Based on JBM 1.4 documentation, the jar needed for remote client is:

jboss-aop.jar
jboss-remoting.jar
jbossall-client.jar
jboss-messaging-client.jar
jboss-mdr.jar <- I had to add this one to get the signature class
javassist.jar
trove.jar

(http://www.jboss.org/file-access/default/members/jbossmessaging/freezone/docs/userguide-1.4.0.SP3/html_single/index.html#inst.remoteclient)

I included the jars in the order above and verified all the jars are in the right version. (JBoss 4.3.0GA) However, I am still getting the same exception. Any help would be appreciated.

[peterj]

Try adding client/log4j.jar and see if that helps.

If that does not work, add "-verbose:class" to the JVM options on your client's command line and run it again. This option prints out the JAR file location for each class loaded; perhaps that will give use some clue as to the problem. Also, post the full command line you used.

[timfox]

My guess is the user has a mix and match of different versions on client and server side.

[dkuanwang]

Peter,

Adding log4j.jar causes exception in the ConnectionFactory lookup which is before where the other exception happens.

Exception in thread "main" java.lang.NoSuchFieldError: TRACE
at org.jboss.logging.Log4jLoggerPlugin.isTraceEnabled(Log4jLoggerPlugin.java:85)

I removed the log4j.jar and I have added verbose:class in my run command but the log doesn't show much insight for me:

[Loaded org.jboss.aop.advice.org.jboss.jms.client.container.StateCreationAspect_z_handleCreateSessionDelegate_1027049 from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded org.jboss.jms.client.container.SessionAspect from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded org.jboss.jms.delegate.Ack from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded javax.jms.IllegalStateException from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded javax.jms.TransactionInProgressException from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded org.jboss.jms.delegate.Cancel from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded org.jboss.jms.client.state.HierarchicalStateSupport from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded org.jboss.jms.client.state.SessionState from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded org.jboss.jms.delegate.DeliveryInfo from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded org.jboss.aop.advice.org.jboss.jms.client.container.SessionAspect_z_handleCreateConnectionConsumer_1027049 from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded org.jboss.jms.client.remoting.ConsolidatedRemotingConnectionListener from file:/C:/JMSRemoteClient/lib/jbossall-client.jar]
[Loaded sun.reflect.GeneratedMethodAccessor1 from __JVM_DefineClass__]
Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class org.jboss.remoting.util.TimerUtil
at org.jboss.remoting.ConnectionValidator.start(ConnectionValidator.java:503)

TimerUtil is in jboss-remoting.jar as well as jbossall-client.jar. I am not sure why the JVM couldn't find. (My JVM is 1.6. If I switch to 1.5, I get NoClassDefFoundError exception at the same place but without the message suggesting the missing class name).

Tim,

I think the client jar is the right version because I am able to use the same set of jars to connect to the JBM queue via Hermes. Not sure why a standalone java client would act any difference...

[peterj]

You should be using jboss_home/client/log4j.jar. Looks like you are using an older version of log4j, before they added in trace level support.

I am suspecting the the log4j.jar file bacause TimerUtil imports a class from there, and the error text is "Could not initialize". This implies, to me, a missing dependency.

[dkuanwang]

Thanks Peter for the quick response.

The log4j is from the client folder and it is apache version 1.2.14. Based on the following post, it should resolve the issue.

http://lists.jboss.org/pipermail/jboss-user/2008-February/108795.html

However, if I don't include log4j.jar, I do not get exception (java.lang.NoSuchFieldError: TRACE).

What am I missing?

[peterj]

I moved my messaging app over to EAP 4.3, and there is what I had to add to my client's classpath (beyond the JAR files for my app):

jboss-eap-4.3\jboss-as\client\jbossall-client.jar
jboss-eap-4.3\jboss-as\server\default\deploy\jboss-aop-jdk50.deployer\jboss-aop-jdk50.jar
jboss-eap-4.3\jboss-as\client\javassist.jar
jboss-eap-4.3\jboss-as\client\trove.jar
jboss-eap-4.3\jboss-as\client\commons-logging.jar
jboss-eap-4.3\jboss-as\client\log4j.jar

[dkuanwang]

Please discard my last post. What was in the classpath was the old log4j.jar and the exception went away after I fixed the issue.

Peter you were right on, the TimerUtil class failed to initialize due to the log4j.jar. Thanks!

[dkuanwang]

Hi,

The standalone client works fine until I import the standalone code as a utility jar into a application running on Sun Application Server 8.2.

I run into NoClassDefFound Exception again:

Caused by: java.lang.NoClassDefFoundError
at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.createClient(ClientConnectionFactoryDelegate.java:298)
at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.org$jboss$jms$client$delegate$ClientConnectionFactoryDelegate$getClientAOPStack$aop(ClientConnectionFactoryDelegate.java:228)
at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.getClientAOPStack(ClientConnectionFactoryDelegate.java)
at org.jboss.jms.client.delegate.ClientClusteredConnectionFactoryDelegate.org$jboss$jms$client$delegate$ClientClusteredConnectionFactoryDelegate$getClientAOPStack$aop(ClientClusteredConnectionFactoryDelegate.java:242)
at org.jboss.jms.client.delegate.ClientClusteredConnectionFactoryDelegate.getClientAOPStack(ClientClusteredConnectionFactoryDelegate.java)
at org.jboss.jms.client.ClientAOPStackLoader.load(ClientAOPStackLoader.java:75)
at org.jboss.jms.client.JBossConnectionFactory.createConnectionInternal(JBossConnectionFactory.java:192)
at org.jboss.jms.client.JBossConnectionFactory.createConnection(JBossConnectionFactory.java:87)
at jmsremoteclient.TestMessageProducer.(TestMessageProducer.java:43)

TestMessageProducer is the class where I try to initiate the connection to JBM. The exception doesn't suggest the class name and therefore made it harder to debug. (I did included log4j.jar)

Any suggestions?

[wkzk]

Hi. I got the same exception, and I understand what is going on.

Let me make sure that
I have no choice with older log4j version even now.

No work around?

Thanks in advance.

Shige