1 2 Previous Next 25 Replies Latest reply on Jan 17, 2013 8:52 AM by Andy Taylor

    problem with jms receive in EJB

    pacodelucia Newbie

      Hi

       

      I'm trying to read from a (Hornet-)Jms Queue from an EJB. I know that it is not recommended because the receive is a blocking call. Therefore I'm using a tiemout:

       

      Message msg = consumer.receive(RECEIVE_TIMEOUT);

       

      My problem is that I get the following Exception:   javax.jms.IllegalStateException: Non XA connection

      I would like to use XA but somehow it seems that I'm not getting a XA connection.

       

      I'm using JBoss 5.1 with HornetQ 2.2.13 resource adapter. The Bean accesses the queue remotely on a JBoss 7 Hornet-Installation.

       

      The EJB ist annotated with

      @TransactionManagement(TransactionManagementType.CONTAINER)

      @TransactionAttribute(TransactionAttributeType.REQUIRED)

       

      My hornetq-remote-ds.xml file looks like this:

       

      <mbean code="org.jboss.jms.jndi.JMSProviderLoader" name="jboss.messaging:service=HornetJMSProviderLoader,name=JMSProvider">

      <attribute name="ProviderName">HornetQJMSProvider</attribute>

      <attribute name="ProviderAdapterClass">org.jboss.jms.jndi.JNDIProviderAdapter</attribute>

      <attribute name="FactoryRef">java:/XAConnectionFactory</attribute>

      <attribute name="QueueFactoryRef">java:/XAConnectionFactory</attribute>

      <attribute name="TopicFactoryRef">java:/XAConnectionFactory</attribute>

      </mbean>

       

      <tx-connection-factory>

      <jndi-name>RemoteJmsXA</jndi-name>

      <xa-transaction/>

      <rar-name>hornetq-ra.rar</rar-name>

      <config-property name="Strict" type="java.lang.Boolean">false</config-property>

      <connection-definition>org.hornetq.ra.HornetQRAConnectionFactory</connection-definition>

      <config-property name="SessionDefaultType" type="java.lang.String">javax.jms.Queue</config-property>

      <config-property name="JmsProviderAdapterJNDI" type="java.lang.String">java:/HornetQJMSProvider</config-property>

      <max-pool-size>10</max-pool-size>

      </tx-connection-factory>

       

       

      Any ideas?

       

      Thanks a lot.

      Regards

       

      Oliver

        • 1. Re: problem with jms receive in EJB
          Yong Hao Gao Master

          How did you get the connection factory? You need use 'JmsXA' to lookup the connection factory.

          • 2. Re: problem with jms receive in EJB
            pacodelucia Newbie

            Hey! Thanks for the quick response!

             

            No, I used java:RemoteJmsXA to look-up the ConnectionFactory. When I use java:JmsXA then I get the following error:

             

            javax.jms.JMSException: There is no administratively defined queue with name:myqueue

             

            I also thought about the JmsXA factory but I cannot see, how this connects to hornet because in JBoss 5.1 hornet is not the default jms implementation. In my jms-ds.xml JmxXA is definied as follows:

             

            <tx-connection-factory>

              <jndi-name>JmsXA</jndi-name>

              <xa-transaction />

              <rar-name>jms-ra.rar</rar-name>

              <connection-definition>org.jboss.resource.adapter.jms.JmsConnectionFactory</connection-definition>

              <config-property name="SessionDefaultType" type="java.lang.String">javax.jms.Topic</config-property>

              <config-property name="JmsProviderAdapterJNDI" type="java.lang.String">java:/DefaultJMSProvider</config-property>

              <max-pool-size>20</max-pool-size>

              <security-domain-and-application>JmsXARealm</security-domain-and-application>

              <depends>jboss.messaging:service=ServerPeer</depends>

            </tx-connection-factory>

             

            The rar-name here is jms-ra.rar. Should I change that to hornet-ra.rar? But then it is basically the same as I have in my hornetq-remote-ds.xml (see above)

             

            Thanks a lot.

            Regards

            Oliver

            • 3. Re: problem with jms receive in EJB
              Andy Taylor Master

              javax.jms.JMSException: There is no administratively defined queue with name:myqueue

              You need to either have the queue defined locally or configure the use of remote jndi, the former is the simplest.

              • 4. Re: problem with jms receive in EJB
                Andy Taylor Master

                just a note on using a blocking call, this is illegal in JEE spec for good reason, you will find it wont scale and may cause you other problems in th elong run, you should use an MDB

                • 5. Re: problem with jms receive in EJB
                  pacodelucia Newbie

                  Hi Andy. Thanks for your response but what do you mean with "define the queue locally"? I have to use the queue which is provided by another team on their remote server. Is there a way to define it locally but still forward everything to the remote queue?

                  • 6. Re: problem with jms receive in EJB
                    Andy Taylor Master

                    you need to define the queue in the same server as the EJB, this has no bearing on where you actually connect to, its just to use the name so just needs to be identical.

                    • 7. Re: problem with jms receive in EJB
                      pacodelucia Newbie

                      I'm not sure that it is really prohibited. The only note I found was that you cannot use e.g. ServerSession and the XA-Interfaces. There is also a list of some methods that can only be used in client containers but receive is not included there (Chapter 6.6 of the JEE Spec v5).

                       

                      But of course you are right, that this doesn't scale well. In my case this does not matter: I'm currently implementing a simple generic JMS-Administration-GUI. The connections are displayed using a JMS Browser. I think this is correct and does not violate any definitions in the JEE Spec. The problem is deleting a message. Because there is no "delete" method I'm acknowledge the session... but saying it I could also read it with the browser and acknowledge it then I would not have any blocking calls.

                      • 8. Re: problem with jms receive in EJB
                        Andy Taylor Master

                        I'm not sure that it is really prohibited. The only note I found was that you cannot use e.g. ServerSession and the XA-Interfaces. There is also a list of some methods that can only be used in client containers but receive is not included there (Chapter 6.6 of the JEE Spec v5).

                        Not all methods are actually illegal, some such as setting a message listener should throw an exception, other such as a blocking receive are allowed but are bad practice.

                         

                        But of course you are right, that this doesn't scale well. In my case this does not matter:

                        remember this effects the other apps running in the server as wll not just your own.

                        I'm currently implementing a simple generic JMS-Administration-GUI. The connections are displayed using a JMS Browser. I think this is correct and does not violate any definitions in the JEE Spec. The problem is deleting a message. Because there is no "delete" method I'm acknowledge the session... but saying it I could also read it with the browser and acknowledge it then I would not have any blocking calls.

                        not sure i get this, what kind of JMS Browser?

                         

                        also acknowledging a message with a browser will have no effect?

                        • 9. Re: problem with jms receive in EJB
                          pacodelucia Newbie

                          Well... I'm probably just too stupid... I still don't get how I would define a queue locally. I did the following in destination-service.xml:

                           

                          <mbean code="org.jboss.mq.server.jmx.Queue" name="jboss.mq.destination:service=Queue,name=myqueue">

                          <depends optional-attribute-name="DestinationManager">jboss.mq:service=DestinationManager</depends>

                          </mbean>

                           

                          But this somwhow "overrides" my remote queue. I just see the local, empty queue. Or should I use a hornetq-specific class in the "code" attribute?

                          • 10. Re: problem with jms receive in EJB
                            Andy Taylor Master

                            ok i see, you dont have HornetQ deployed locally (your config is MQ), in that case you cant use jndi, you will need to use session.createQueue or HornetQJMSClient.createQueue in your code

                            • 11. Re: problem with jms receive in EJB
                              pacodelucia Newbie

                              Yes I only have the RAR on my JBoss-Instance. But now I understand what you mean with "configure locally".

                               

                              I'm already using session.createQueue and it works fine. The problem ist that you told me that I have to use the JmsXA ConnectionFactory in order to get XA working. Is there a way to achiev this without deploying the SAR and define the queue locally?

                              • 12. Re: problem with jms receive in EJB
                                Andy Taylor Master

                                can you post the stack trace you are getting when you use JmsXA, i dont see any reason that it needs to lookup the queue unless you are injecting it as a resource into your EJB

                                • 13. Re: problem with jms receive in EJB
                                  Andy Taylor Master

                                  also can you postthe ra.xml that your RemoteJmsXA uses?

                                  • 14. Re: problem with jms receive in EJB
                                    pacodelucia Newbie

                                    Here's the stack trace:

                                     

                                    javax.jms.JMSException: There is no administratively defined queue with name:mps.mobi24.DLQ

                                        at org.jboss.jms.server.endpoint.ServerSessionEndpoint.createQueue(ServerSessionEndpoint.java:299)

                                        at org.jboss.jms.server.endpoint.advised.SessionAdvised.org$jboss$jms$server$endpoint$advised$SessionAdvised$createQueue$aop(SessionAdvised.java:105)

                                        at org.jboss.jms.server.endpoint.advised.SessionAdvised$createQueue_6431069199924553036.invokeTarget(SessionAdvised$createQueue_6431069199924553036.java)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)

                                        at org.jboss.jms.server.container.ServerLogInterceptor.invoke(ServerLogInterceptor.java:105)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.jms.server.endpoint.advised.SessionAdvised.createQueue(SessionAdvised.java)

                                        at org.jboss.jms.wireformat.SessionCreateQueueRequest.serverInvoke(SessionCreateQueueRequest.java:74)

                                        at org.jboss.jms.server.remoting.JMSServerInvocationHandler.invoke(JMSServerInvocationHandler.java:143)

                                        at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:891)

                                        at org.jboss.remoting.transport.local.LocalClientInvoker.invoke(LocalClientInvoker.java:106)

                                        at org.jboss.remoting.Client.invoke(Client.java:1724)

                                        at org.jboss.remoting.Client.invoke(Client.java:629)

                                        at org.jboss.remoting.Client.invoke(Client.java:617)

                                        at org.jboss.jms.client.delegate.DelegateSupport.doInvoke(DelegateSupport.java:189)

                                        at org.jboss.jms.client.delegate.DelegateSupport.doInvoke(DelegateSupport.java:160)

                                        at org.jboss.jms.client.delegate.ClientSessionDelegate.org$jboss$jms$client$delegate$ClientSessionDelegate$createQueue$aop(ClientSessionDelegate.java:319)

                                        at org.jboss.jms.client.delegate.ClientSessionDelegate$createQueue_6431069199924553036.invokeTarget(ClientSessionDelegate$createQueue_6431069199924553036.java)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)

                                        at org.jboss.jms.client.container.FailoverValveInterceptor.invoke(FailoverValveInterceptor.java:92)

                                        at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:86)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.jms.client.container.ClosedInterceptor.invoke(ClosedInterceptor.java:170)

                                        at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:86)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.jms.client.delegate.ClientSessionDelegate.createQueue(ClientSessionDelegate.java)

                                        at org.jboss.jms.client.JBossSession.createQueue(JBossSession.java:250)

                                        at org.jboss.resource.adapter.jms.JmsSession.createQueue(JmsSession.java:539)

                                        at ch.mobi.mps.business.application.admin.JmsDestinationManagerBean.getDestination(JmsDestinationManagerBean.java:346)

                                        at ch.mobi.mps.business.application.admin.JmsDestinationManagerBean.getMessageInfoList(JmsDestinationManagerBean.java:400)

                                        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.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:122)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)

                                        at org.jboss.ejb3.EJBContainerInvocationWrapper.invokeNext(EJBContainerInvocationWrapper.java:69)

                                        at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.invoke(InterceptorSequencer.java:73)

                                        at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.aroundInvoke(InterceptorSequencer.java:59)

                                        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.PerJoinpointAdvice.invoke(PerJoinpointAdvice.java:174)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.fillMethod(InvocationContextInterceptor.java:72)

                                        at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_fillMethod_1081302853.invoke(InvocationContextInterceptor_z_fillMethod_1081302853.java)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.setup(InvocationContextInterceptor.java:88)

                                        at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_setup_1081302853.invoke(InvocationContextInterceptor_z_setup_1081302853.java)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:62)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:56)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:68)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)

                                        at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:190)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.security.RunAsSecurityInterceptorv2.invoke(RunAsSecurityInterceptorv2.java:94)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.security.RoleBasedAuthorizationInterceptorv2.invoke(RoleBasedAuthorizationInterceptorv2.java:201)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:186)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67)

                                        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)

                                        at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:176)

                                        at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:216)

                                        at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:207)

                                        at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:164)

                                        at $Proxy424.getMessageInfoList(Unknown Source)

                                        at ch.mobi.mps.presentation.beans.jmsadmin.JmsManagerBean.loadMessageList(JmsManagerBean.java:121)

                                        at ch.mobi.mps.presentation.beans.jmsadmin.JmsManagerBean.reloadMessageList(JmsManagerBean.java:180)

                                        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.apache.el.parser.AstValue.invoke(AstValue.java:170)

                                        at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)

                                        at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)

                                        at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)

                                        at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)

                                        at javax.faces.component.UICommand.broadcast(UICommand.java:387)

                                        at org.ajax4jsf.component.AjaxActionComponent.broadcast(AjaxActionComponent.java:55)

                                        at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:329)

                                        at org.ajax4jsf.component.AjaxViewRoot.broadcastEventsForPhase(AjaxViewRoot.java:304)

                                        at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:261)

                                        at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:474)

                                        at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)

                                        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)

                                        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)

                                        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)

                                        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

                                        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

                                        at ch.mobi.mps.presentation.filter.RequestParameterFilter.doFilter(RequestParameterFilter.java:81)

                                        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

                                        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

                                        at ch.mobi.mps.presentation.filter.TimeoutCheckFilter.doFilter(TimeoutCheckFilter.java:29)

                                        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

                                        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

                                        at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206)

                                        at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)

                                        at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388)

                                        at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)

                                        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

                                        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

                                        at ch.mobi.mps.presentation.filter.DisableUrlRewriteFilter.doFilter(DisableUrlRewriteFilter.java:85)

                                        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

                                        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

                                        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

                                        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

                                        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

                                        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)

                                        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

                                        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)

                                        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)

                                        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)

                                        at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)

                                        at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)

                                        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

                                        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

                                        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)

                                        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

                                        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)

                                        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)

                                        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)

                                        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)

                                        at java.lang.Thread.run(Thread.java:662)

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