[jboss-user] [JBoss Messaging] - NullPointerException while setting Bridge

YogeshGLX do-not-reply at jboss.com
Fri Nov 28 07:31:57 EST 2008


Hi,
I'm configuring jboss messaging bridge. Both the source and destination are jboss messaging 1.4 which are deployed on jboss-eap 4.3. 
I have configured a Remote JMSProvider in jms-ds.xml as:
  <mbean code="org.jboss.jms.jndi.JMSProviderLoader"
  |       name="jboss.mq:service=JMSProviderLoader,name=RemoteJMSProvider,server=Another">
  |     <attribute name="ProviderName">RemoteJMSProvider</attribute>
  |     <attribute name="ProviderAdapterClass">org.jboss.jms.jndi.JNDIProviderAdapter</attribute>
  |     <attribute name="Properties">
  |        java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
  |        java.naming.factory.url.pkgs=org.jnp.interfaces
  |        java.naming.provider.url=anotherjboss:1099
  |     </attribute>
  |     <attribute name="QueueFactoryRef">XAConnectionFactory</attribute>
  |     <!-- The topic factory -->
  |     <attribute name="TopicFactoryRef">XAConnectionFactory</attribute>
  |   </mbean>
  | 
This is the only change I have done to configure bridge apart from actual Bridge mbean config. which is :

  |    <mbean code="org.jboss.jms.server.bridge.BridgeService"
  |           name="jboss.messaging:service=Bridge,name=BridgeToRemote"
  |           xmbean-dd="xmdesc/Bridge-xmbean.xml">
  | 
  |       <depends optional-attribute-name="SourceProviderLoader">
  |           jboss.messaging:service=JMSProviderLoader,name=LocalJMSProvider</depends>
  | 
  |       <depends optional-attribute-name="TargetProviderLoader">
  |           jboss.mq:service=JMSProviderLoader,name=RemoteJMSProvider,server=Another</depends>    
  |       
  |       <attribute name="SourceDestinationLookup">/queue/A</attribute> 
  | 
  |       <attribute name="TargetDestinationLookup">/queue/B</attribute>
  | 
  |       <attribute name="SourceUsername">user1</attribute>
  |       <attribute name="SourcePassword">pwd1</attribute>
  | 
  |       <attribute name="TargetUsername">user2</attribute>
  |       <attribute name="TargetPassword">pwd2</attribute>
  | 
  |       
  |       <!-- Optional: The Quality Of Service mode to use, one of:
  |            QOS_AT_MOST_ONCE = 0;
  |            QOS_DUPLICATES_OK = 1;
  |            QOS_ONCE_AND_ONLY_ONCE = 2; -->
  |       <attribute name="QualityOfServiceMode">2</attribute>
  |           
  |       <attribute name="MaxBatchSize">5</attribute>     
  |        
  |       <attribute name="MaxBatchTime">-1</attribute>
  |       
  |       <attribute name="FailureRetryInterval">50000</attribute>      
  |       
  |       <attribute name="MaxRetries">-1</attribute>
  | 
  |       <attribute name="AddMessageIDInHeader">false</attribute>
  |       
  |     </mbean>
  | 

Another jboss is up and running but the bridge is unable to connect. I get a NPE like this:
 12:12:41,250 WARN  [Bridge] Failed to set up connections
java.lang.NullPointerException
        at javax.naming.InitialContext.getURLScheme(InitialContext.java:228)
        at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:277)
        at javax.naming.InitialContext.lookup(InitialContext.java:351)
        at org.jboss.jms.server.bridge.JNDIFactorySupport.createObject(JNDIFactorySupport.java:66)
        at org.jboss.jms.server.bridge.JNDIConnectionFactoryFactory.createConnectionFactory(JNDIConnectionFactoryFactory.java:46)
        at org.jboss.jms.server.bridge.Bridge.createConnection(Bridge.java:832)
        at org.jboss.jms.server.bridge.Bridge.setupJMSObjects(Bridge.java:944)
        at org.jboss.jms.server.bridge.Bridge.setupJMSObjectsWithRetry(Bridge.java:1152)
        at org.jboss.jms.server.bridge.Bridge.access$1500(Bridge.java:66)
        at org.jboss.jms.server.bridge.Bridge$FailureHandler.run(Bridge.java:1507)
        at java.lang.Thread.run(Thread.java:595)

I further checked for any problems and just BEFORE this exception I'm getting another exception in PropertyEditors from jboss util package. Here is the stack trace for that exception:

12:21:05,341 TRACE [PropertyEditors] Failed to find property editor for: onewayThreadPool
12:21:05,341 TRACE [PropertyEditors] Failed to write property
java.lang.NullPointerException
        at org.jboss.util.propertyeditor.PropertyEditors.mapJavaBeanProperties(PropertyEditors.java:373)
        at org.jboss.remoting.transport.socket.SocketServerInvoker.setup(SocketServerInvoker.java:155)
        at org.jboss.remoting.transport.bisocket.BisocketServerInvoker.setup(BisocketServerInvoker.java:510)
        at org.jboss.remoting.ServerInvoker.create(ServerInvoker.java:836)
        at org.jboss.remoting.transport.Connector.init(Connector.java:430)
        at org.jboss.remoting.transport.Connector.create(Connector.java:777)
        at org.jboss.remoting.transport.Connector.start(Connector.java:301)
        at org.jboss.remoting.Client.addListener(Client.java:918)
        at org.jboss.jms.client.remoting.JMSRemotingConnection.addInvokerCallbackHandler(JMSRemotingConnection.java:230)
        at org.jboss.jms.client.remoting.JMSRemotingConnection.start(JMSRemotingConnection.java:340)
        at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.org$jboss$jms$client$delegate$ClientConnectionFactoryDelegate$createConnectionDelegate$aop(ClientConnectionFactoryDelegate.java:154)
        at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.invokeNext(ClientConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.java)
        at org.jboss.jms.client.container.StateCreationAspect.handleCreateConnectionDelegate(StateCreationAspect.java:83)
        at org.jboss.aop.advice.org.jboss.jms.client.container.StateCreationAspect0.invoke(StateCreationAspect0.java)
        at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.invokeNext(ClientConnectionFactoryDelegate$createConnectionDelegate_N3019492359065420858.java)
        at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.createConnectionDelegate(ClientConnectionFactoryDelegate.java)
        at org.jboss.jms.client.JBossConnectionFactory.createConnectionInternal(JBossConnectionFactory.java:205)
        at org.jboss.jms.client.JBossConnectionFactory.createXAConnection(JBossConnectionFactory.java:128)
        at org.jboss.jms.server.bridge.Bridge.createConnection(Bridge.java:858)
        at org.jboss.jms.server.bridge.Bridge.setupJMSObjects(Bridge.java:940)
        at org.jboss.jms.server.bridge.Bridge.setupJMSObjectsWithRetry(Bridge.java:1152)
        at org.jboss.jms.server.bridge.Bridge.access$1500(Bridge.java:66)
        at org.jboss.jms.server.bridge.Bridge$FailureHandler.run(Bridge.java:1507)
        at java.lang.Thread.run(Thread.java:595)

I don't know if they are related, but still worth mentioning. 
Also as an additional info. Both Jboss are simple standard stand-alone configurations with no fail-over/clustering configured. 

why am I getting an NPE when Bridge is setting up connections? 

Cheers,

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