November 2012 - jboss-user - Jboss List Archives

[jBPM] - Multiple sessions and thread safety using jBPM persistence

by Jason J

Jason J [https://community.jboss.org/people/jasonjho] created the discussion "Multiple sessions and thread safety using jBPM persistence" To view the discussion, visit: https://community.jboss.org/message/773528#773528 -------------------------------------------------------------- For every workflow process I am creating a *new* separate kbase/ksession. So every flow is bound to a unique session and *not* shared. I have enabled JPA persistence and pass in the following env to *each* new session: env = KnowledgeBaseFactory.newEnvironment(); env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf); env.set(EnvironmentName.TRANSACTION_MANAGER, TransactionManagerServices.getTransactionManager()); session = createNewSession(env) session.startProcess(...) I am getting Hibernate StaleObjectExceptions and OptimisticLocking errors when I perform multiple operations on different processes. I am not sure what specific DB operation is causing this, but since each process is in its own KSession - how is this even possible? What database update could be in contention between 2 threads in this case? I am using jBPM5.2. Any ideas??? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/773528#773528] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

13 years, 5 months

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[Beginner's Corner] - How to load a file packaged in the .esb?

by Derek Croxton

Derek Croxton [https://community.jboss.org/people/mataratones] created the discussion "How to load a file packaged in the .esb?" To view the discussion, visit: https://community.jboss.org/message/773228#773228 -------------------------------------------------------------- I'm trying to load an XSLT file from the .esb package. (This is for a custom action, ignore for the moment why I'm not doing an XsltAction.) The base path, for some reason, is jboss-as\bin\, which is obviously not in the .esb, and when I try to use a relative path that goes up a directory ("../"), I get a MalformedURL exception. A servlet would have a context, but my class is not a servlet, so I don't know how to get at a file inside the .esb. I don't think this is an unusual thing to do, but obviously I have no idea how to do it, and I would appreciate any help. Derek -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/773228#773228] Start a new discussion in Beginner's Corner at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

13 years, 5 months

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Re: [jboss-user] [JBoss Tools] - It's Beta Time for JBoss Tools and Developer Studio

by Jorge Ortega Ruiz

Jorge Ortega Ruiz [https://community.jboss.org/people/jorteruiz] commented on "It's Beta Time for JBoss Tools and Developer Studio" To view all comments on this blog post, visit: https://community.jboss.org/community/tools/blog/2012/11/01/its-beta-time... -------------------------------------------------- Eclipse 3.8 also is an IDE. From http://download.eclipse.org/eclipse/downloads/drops/R-3.8.1-201209141540/ here you can download the "classic" version of Eclipse 3.8.1, but not the Java EE Bundled version. --------------------------------------------------

13 years, 5 months

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[Javassist] - Is it possible to get a pre-GA download of Javassist 3.17?

by Lisa Henderson

Lisa Henderson [https://community.jboss.org/people/lisahenderson] created the discussion "Is it possible to get a pre-GA download of Javassist 3.17?" To view the discussion, visit: https://community.jboss.org/message/773510#773510 -------------------------------------------------------------- I want to determine if the new javassist-160 solution solves my project interactions between Javassist and Java 7. Is there an evaluation copy that we can download? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/773510#773510] Start a new discussion in Javassist at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

13 years, 5 months

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[jBPM] - problem with JPAKnowledgeService and LocalTaskService

by Ted Pan

Ted Pan [https://community.jboss.org/people/ted.pan] created the discussion "problem with JPAKnowledgeService and LocalTaskService" To view the discussion, visit: https://community.jboss.org/message/773504#773504 -------------------------------------------------------------- hi, When I use JPAKnowledgeService and LocalTaskService, the process won't continue when complete the 2nd Human Task. the following is the code fragment | | Environment env = KnowledgeBaseFactory.newEnvironment(); | | | env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, Persistence.createEntityManagerFactory("org.jbpm.persistence.jpa")); | | | env.set( EnvironmentName.TRANSACTION_MANAGER,TransactionManagerServices.getTransactionManager()); | | | | | | | | Properties properties = new Properties(); | | | properties.put("drools.processInstanceManagerFactory", "org.jbpm.persistence.processinstance.JPAProcessInstanceManagerFactory"); | | | properties.put("drools.processSignalManagerFactory", "org.jbpm.persistence.processinstance.JPASignalManagerFactory"); | | | KnowledgeSessionConfiguration config = KnowledgeBaseFactory.newKnowledgeSessionConfiguration(properties); | | | KnowledgeBase kbase = readKnowledgeBase(); -- read knowledgebase | | | | | | ksession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, env); | | | | | | EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.task"); | | | org.jbpm.task.service.TaskService taskService = new org.jbpm.task.service.TaskService(emf, SystemEventListenerFactory.getSystemEventListener()); | | | | | | LocalTaskService localTaskService = new LocalTaskService(taskService); | | | LocalHTWorkItemHandler localHTWorkItemHandler = new LocalHTWorkItemHandler(localTaskService,ksession, OnErrorAction.RETHROW); | | | localHTWorkItemHandler.setLocal(true); | | | localHTWorkItemHandler.connect(); | | | ksession.getWorkItemManager().registerWorkItemHandler("Human Task", localHTWorkItemHandler); | -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/773504#773504] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

13 years, 5 months

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[Beginner's Corner] - JBoss remoting client

by Carlos Oliva

Carlos Oliva [https://community.jboss.org/people/ramboid] created the discussion "JBoss remoting client" To view the discussion, visit: https://community.jboss.org/message/773493#773493 -------------------------------------------------------------- Could one use the client invoker of JBoss remoting to POST and GET to a http servlet running in a remote server? Currently, I POST and GET to the remote http servlet by writing a java https client in a servlet or EJB in my JBoss5. I can send and receive xml fine. I was wondering if I cna use the client invoker of my JBoss server instead of wrting a SUN https client. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/773493#773493] Start a new discussion in Beginner's Corner at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

13 years, 5 months

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Re: [jboss-user] [JBoss Tools] - It's Beta Time for JBoss Tools and Developer Studio

by Nick Boldt

Nick Boldt [https://community.jboss.org/people/nickboldt] commented on "It's Beta Time for JBoss Tools and Developer Studio" To view all comments on this blog post, visit: https://community.jboss.org/community/tools/blog/2012/11/01/its-beta-time... -------------------------------------------------- AFAIK, Eclipse 3.8 doesn't really include UI, it's just the RCP underlayer. If you want an IDE, you should be using 4.2. Grab this: http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/... http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/... and you'll have everything you need to run JBoss Tools 4 or JBDS 6. --------------------------------------------------

13 years, 5 months

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Re: [jboss-user] [JBoss Tools] - It's Beta Time for JBoss Tools and Developer Studio

by Jorge Ortega Ruiz

Jorge Ortega Ruiz [https://community.jboss.org/people/jorteruiz] commented on "It's Beta Time for JBoss Tools and Developer Studio" To view all comments on this blog post, visit: https://community.jboss.org/community/tools/blog/2012/11/01/its-beta-time... -------------------------------------------------- Hi! Does JBoss Tools 4 work with Eclipse Juno 3.8 or only with Juno 4.2? Is it recommended to use 4.2 instead of 3.8?... Thanks! --------------------------------------------------

13 years, 5 months

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[JBoss Remoting] - How to verify that an remote interface on client and server side is the same?

by windigo

windigo [https://community.jboss.org/people/windigo] created the discussion "How to verify that an remote interface on client and server side is the same?" To view the discussion, visit: https://community.jboss.org/message/773459#773459 -------------------------------------------------------------- Hi, I've a fatclient consuming a @Remote ejb-service at jboss 6.1.0. Both client and server are sharing the same remote-interface. To get a proxyobject for the service on client-side looks something like this: Context context = new ... EJBService service = context.lookup("jndiurl"); Since the EJBservice was sucessfully deployed at jboss and the jndi-url is sucessfully published I will always get a valid proxy-object on client side. The problem I'm facing quite often is that we update our cilentcode and forget to redeploy the updated server-application which is using this changed EJBService. For.example after changing a method signature or add a new method in the interface its still possible on client-side to lookup a valid remote-proxy-object from an outversioned @Remote-EJBService on server-side. Only after invoking the changed methods on client side I got a stacktrace like this: Exception in thread "main" java.lang.NullPointerException at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:345) at org.jboss.ejb3.session.InvokableContextClassProxyHack._dynamicInvoke(InvokableContextClassProxyHack.java:53) at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:91) at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:967) at org.jboss.remoting.transport.socket.ServerThread.completeInvocation(ServerThread.java:791) at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:744) at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:586) at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:234) at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:218) at org.jboss.remoting.Client.invoke(Client.java:2070) at org.jboss.remoting.Client.invoke(Client.java:879) at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:60) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.security.client.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:65) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:77) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.async.impl.interceptor.AsynchronousClientInterceptor.invoke(AsynchronousClientInterceptor.java:143) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.aspects.remoting.PojiProxy.invoke(PojiProxy.java:62) at $Proxy8.invoke(Unknown Source) at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:185) at $Proxy7.bla(Unknown Source) at EJBServiceClient.main(EJBServiceClient.java:33) at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:72) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.security.client.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:65) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:77) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.async.impl.interceptor.AsynchronousClientInterceptor.invoke(AsynchronousClientInterceptor.java:143) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.aspects.remoting.PojiProxy.invoke(PojiProxy.java:62) at $Proxy8.invoke(Unknown Source) at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:185) at $Proxy7.bla(Unknown Source) at EJBServiceClient.main(EJBServiceClient.java:33) Is it possible to check wether the packaged interface in the application-jars/ears/wars on client and server side are the same - something like the serialversionUID on entities? thanks Felix -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/773459#773459] Start a new discussion in JBoss Remoting at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

13 years, 5 months

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[JBoss Tools] Announcement: JBoss Tools 4 and Developer Studio 6 Beta 1

by Max Rydahl Andersen

Max Rydahl Andersen [https://community.jboss.org/people/maxandersen] posted the announcement <b>Announcement</b>: "JBoss Tools 4 and Developer Studio 6 Beta 1" To view the announcement, visit: https://community.jboss.org/community/tools -------------------------------------------------------------- https://community.jboss.org/community/tools/blog/2012/11/01/its-beta-time... https://community.jboss.org/en/tools/blog/2012/11/01/its-beta-time-for-jb... -------------------------------------------------------------- Announcement expires on December 2, 2012

13 years, 5 months

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jboss-user November 2012