seam annotations in components called from a jbpm process

[be082032]

I am using seam 1.0.1 GA and jboss 4.0.4 GA.

When I build a seam javaBean component that has methods with jbpm annotations (@StartTask @EndTask) and the component is called from a JSF page, all works well (the @EndTask gives a signal that the task is ended and the jbpm process goes on.


If I call such a component from a jbpm Process using the expression language (like in the JSF page) , I get errors. Are such seam components not to be called from a jbpm process?

jBPM snippet:

action expression="#{metadataIngesterJavaBean.executeTask}"



Component code:

@StartTask @EndTask
public void executeTask() {
log.info("executeTask, context = "+jbpmContext+ " jbpm="+ jbpm);

try {

businessProcessContext.set("aap","na de taak");

}
catch (Exception e) {
e.printStackTrace();
}
log.info("task ended!!");
}

[gavin.king]

(1) You complain about errors but you don't show a stack trace?
(2) I can't understand why you would want to do this ... it does not seem at all like a "clean" usage of jBPM.

[be082032]

(2) Why do I want to do this:

Most of the participants in our workflow process are computers, not humans. The process is about ingesting video on demand movies, having them encrypted on one machine, after this informing a middleware server on another machine, after this store the encrypted movie on a VOD server etc... This is an automatic process in which each step can take hours. We do not want to have to restart the encryption when something fails on the VOD server, we want to be able to resume the process from the last sucessfull step.

We are using a system like this based on jbpm 2.0 (it is running in the field now for more than a year, with success). In this system, we had the participating computers poll jBPM to see if there were states in a process on which they had to act (just like humans would in a GUI).

What I wanted to achieve now, is replace the polling mechanism by calling the computer participants from the jbpm process. (create a task for the computer system, assign it to that system and call the system to perform the task). If this is unproper, i will stick to the polling mechanism.
Besides, I thing that there is another reason why I should stick to polling. As far as I can see, only tasks have priorities, and we should be able to give certain movie ingests priority over other ones. In the polling scenario, we can have the computer systems scan their task list and pick out the task with highest prio to start with. From what I understand , the jbpm process itself does not do much with the task priorities itself, am I correct in this?


(1) There are 2 scenarios:

a) The process is started by a seam componenent (metadataIngesterBean) that is called from a JSF page and the process calls this component from jbpm. In this case there is no stack trace, but the @EndTask is not executed. The process does not continue.

b) The process calls another seam component (metadataIngesterBean2 , not the one that is called from the JSF page) and then I get a stack trace Here is the trace of the whole web request):

2006-07-20 08:40:56,554 DEBUG [org.jboss.seam.contexts.Lifecycle] >>> Begin web request
2006-07-20 08:40:56,554 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@1124805{ url=null ,addedOrder=0}
2006-07-20 08:40:56,554 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@13641d6{ url=null ,addedOrder=0}
2006-07-20 08:40:56,570 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@11c5bb0{ url=null ,addedOrder=0}
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.Component] instantiating Seam component: org.jboss.seam.core.manager
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.core.Manager] No stored conversation
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.contexts.Contexts] found in application context: org.jboss.seam.core.init
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.Component] instantiating Seam component: org.jboss.seam.core.pageflow
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.jsf.AbstractSeamPhaseListener] After restoring conversation context: ConversationContext(2)
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.jsf.SeamVariableResolver] resolving name: metadataIngesterJavaBean
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.Component] instantiating Seam component: org.jboss.seam.core.process
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.Component] instantiating Seam component: metadataIngesterJavaBean
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.jsf.SeamVariableResolver] resolved name to seam component
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.contexts.Contexts] found in application context: taskInstance
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.util.Naming] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
2006-07-20 08:40:56,570 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@13a694b{ url=null ,addedOrder=0}
2006-07-20 08:40:56,570 DEBUG [org.jboss.seam.Component] instantiating Seam component: jbpmContext
2006-07-20 08:40:56,586 DEBUG [org.jbpm.configuration.JbpmContextInfo] creating jbpm context with service factories '[message, scheduler, logging, persistence, authentication]'
2006-07-20 08:40:56,586 DEBUG [org.jbpm.JbpmContext] creating JbpmContext
2006-07-20 08:40:56,586 DEBUG [org.jbpm.configuration.JbpmContextInfo] creating jbpm context with service factories '[message, scheduler, logging, persistence, authentication]'
2006-07-20 08:40:56,586 DEBUG [org.jbpm.JbpmContext] creating JbpmContext
2006-07-20 08:40:56,586 DEBUG [org.jbpm.JbpmContext] closing JbpmContext
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.core.ManagedJbpmContext] created seam managed jBPM context
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.util.Naming] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.util.Naming] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.util.Naming] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
2006-07-20 08:40:56,586 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@1d6e289{ url=null ,addedOrder=0}
2006-07-20 08:40:56,586 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@b2abfc{ url=null ,addedOrder=0}
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.contexts.Contexts] found in application context: org.jboss.seam.core.jbpm
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.contexts.Contexts] found in application context: businessProcessContext
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.contexts.Contexts] found in application context: processInstance
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.util.Naming] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.Component] instantiating Seam component: interpolator
2006-07-20 08:40:56,586 INFO [com.siemens.mcc.actor.metadataingester.MetadataIngesterJavaBean] Created process ?
2006-07-20 08:40:56,586 DEBUG [org.jboss.seam.util.Naming] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
2006-07-20 08:40:56,586 DEBUG [org.jbpm.persistence.db.DbPersistenceServiceFactory] creating persistence service
2006-07-20 08:40:56,586 DEBUG [org.jbpm.persistence.db.DbPersistenceService] creating hibernate session
2006-07-20 08:40:56,586 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@454bc7{ url=null ,addedOrder=0}
2006-07-20 08:40:56,586 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@1721ae2{ url=null ,addedOrder=0}
2006-07-20 08:40:56,586 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@430af2{ url=null ,addedOrder=0}
2006-07-20 08:40:56,601 DEBUG [org.jbpm.graph.def.GraphElement] event 'process-start' on 'ProcessDefinition(mcc-ingest)' for 'Token(/)'
2006-07-20 08:40:56,601 DEBUG [org.jbpm.svc.Services] executing default save operations
2006-07-20 08:40:56,601 DEBUG [org.jbpm.svc.save.HibernateSaveOperation] saving process instance
2006-07-20 08:40:56,617 DEBUG [org.jbpm.svc.save.SaveLogsOperation] flushing logs to logging service.
2006-07-20 08:40:56,617 DEBUG [org.jbpm.svc.save.CascadeSaveOperation] cascading save of 'org.jbpm.graph.exe.ProcessInstance@127b0d2'
2006-07-20 08:40:56,617 DEBUG [org.jbpm.graph.def.GraphElement] event 'before-signal' on 'StartState(start)' for 'Token(/)'
2006-07-20 08:40:56,617 DEBUG [org.jbpm.graph.def.GraphElement] event 'node-leave' on 'StartState(start)' for 'Token(/)'
2006-07-20 08:40:56,617 DEBUG [org.jbpm.graph.def.GraphElement] event 'transition' on 'Transition(tr2)' for 'Token(/)'
2006-07-20 08:40:56,632 DEBUG [org.jbpm.graph.def.GraphElement] event 'node-enter' on 'TaskNode(task1)' for 'Token(/)'
2006-07-20 08:40:56,632 WARN [org.hibernate.engine.StatefulPersistenceContext.ProxyWarnLog] Narrowing proxy to class org.jbpm.graph.node.TaskNode - this operation breaks ==
2006-07-20 08:40:56,632 DEBUG [org.jbpm.graph.def.GraphElement] event 'task-create' on 'Task(todo)' for 'Token(/)'
2006-07-20 08:40:56,664 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@14f02fb{ url=null ,addedOrder=0}
2006-07-20 08:40:56,664 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@4cc70e{ url=null ,addedOrder=0}
2006-07-20 08:40:56,679 DEBUG [org.jbpm.graph.def.GraphElement] event 'task-assign' on 'Task(todo)' for 'Token(/)'
2006-07-20 08:40:56,679 DEBUG [org.jbpm.graph.def.GraphElement] executing action '#{metadataIngesterJavaBean2.executeTask}'
2006-07-20 08:40:56,679 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@1621a25{ url=null ,addedOrder=0}
2006-07-20 08:40:56,679 DEBUG [org.jboss.seam.util.Naming] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
2006-07-20 08:40:56,679 DEBUG [org.jboss.seam.util.Naming] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
2006-07-20 08:40:56,679 DEBUG [org.jboss.seam.Component] instantiating Seam component: metadataIngesterJavaBean2
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@910539{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@ee1aeb{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@295b9a{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@13d0493{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@f7757c{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@42299e{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@1ba5edf{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@17a0b4d{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@4654f6{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@174202a{ url=null ,addedOrder=0}
2006-07-20 08:40:56,695 DEBUG [org.jbpm.jpdl.el.impl.BeanMethod] invoking expression method 'executeTask'
2006-07-20 08:40:56,711 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@16ea337{ url=null ,addedOrder=0}
2006-07-20 08:40:56,726 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@796a61{ url=null ,addedOrder=0}
2006-07-20 08:40:56,726 ERROR [org.jbpm.graph.def.GraphElement] action threw exception: couldn't evaluate expression '#{metadataIngesterJavaBean2.executeTask}'
org.jbpm.JbpmException: couldn't evaluate expression '#{metadataIngesterJavaBean2.executeTask}'
at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:37)
at org.jbpm.graph.def.Action.execute(Action.java:119)
at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:235)
at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:212)
at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:182)
at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:166)
at org.jbpm.taskmgmt.exe.TaskInstance.setActorId(TaskInstance.java:289)
at org.jbpm.taskmgmt.exe.TaskInstance.setActorId(TaskInstance.java:263)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignmentActorIdExpr(TaskMgmtInstance.java:232)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInstance.java:196)
at org.jbpm.taskmgmt.exe.TaskInstance.assign(TaskInstance.java:199)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:148)
at org.jbpm.graph.node.TaskNode.execute(TaskNode.java:167)
at org.jbpm.graph.def.Node.enter(Node.java:316)
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:585)
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:208)
at org.jbpm.graph.def.Node_$$_javassist_454.enter(Node_$$_javassist_454.java)
at org.jbpm.graph.def.Transition.take(Transition.java:119)
at org.jbpm.graph.def.Node.leave(Node.java:382)
at org.jbpm.graph.node.StartState.leave(StartState.java:70)
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:585)
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:208)
at org.jbpm.graph.def.Node_$$_javassist_454.leave(Node_$$_javassist_454.java)
at org.jbpm.graph.exe.Token.signal(Token.java:174)
at org.jbpm.graph.exe.Token.signal(Token.java:123)
at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:217)
at org.jboss.seam.interceptors.BusinessProcessInterceptor.createProcess(BusinessProcessInterceptor.java:144)
at org.jboss.seam.interceptors.BusinessProcessInterceptor.afterInvocation(BusinessProcessInterceptor.java:107)
at org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:60)
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:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.interceptors.TransactionInterceptor.doInTransactionIfNecessary(TransactionInterceptor.java:34)
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:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.interceptors.RemoveInterceptor.removeIfNecessary(RemoveInterceptor.java:39)
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:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.ejb.SeamInterceptor.aroundInvokeInContexts(SeamInterceptor.java:73)
at org.jboss.seam.ejb.SeamInterceptor.aroundInvoke(SeamInterceptor.java:45)
at org.jboss.seam.interceptors.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:51)
at org.jboss.seam.interceptors.JavaBeanInterceptor.intercept(JavaBeanInterceptor.java:39)
at com.siemens.mcc.actor.metadataingester.MetadataIngesterJavaBean$$EnhancerByCGLIB$$86d897ab.startJbpmprocess()
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:585)
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129)
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:90)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:164)
at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:316)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:106)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:30)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.jbpm.jpdl.el.ELException: An error occurred while invoking method "executeTask" on an instance of class com.siemens.mcc.actor.metadataingester.MetadataIngesterJavaBean2$$EnhancerByCGLIB$$e66dc537
at org.jbpm.jpdl.el.impl.Logger.logError(Logger.java:485)
at org.jbpm.jpdl.el.impl.Logger.logError(Logger.java:589)
at org.jbpm.jpdl.el.impl.ArraySuffix.evaluate(ArraySuffix.java:290)
at org.jbpm.jpdl.el.impl.ComplexValue.evaluate(ComplexValue.java:146)
at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:264)
at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:191)
at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:34)
... 95 more
2006-07-20 08:40:56,742 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, repository=org.jboss.mx.loading.HeirarchicalLoaderRepository3@a09a08, cl=org.jboss.mx.loading.HeirarchicalLoaderRepository3$CacheClassLoader@15321f0{ url=null ,addedOrder=0}
2006-07-20 08:40:56,742 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/seam-todo].[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
javax.faces.FacesException: Error calling action method of component with id _id0:_id1
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:90)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:164)
at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:316)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:106)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:30)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
Caused by: javax.faces.el.EvaluationException: Exception while invoking expression #{metadataIngesterJavaBean.startJbpmprocess}
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:153)
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
... 27 more
Caused by: java.lang.reflect.InvocationTargetException
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:585)
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:208)
at org.jbpm.graph.def.Node_$$_javassist_454.leave(Node_$$_javassist_454.java)
at org.jbpm.graph.exe.Token.signal(Token.java:174)
at org.jbpm.graph.exe.Token.signal(Token.java:123)
at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:217)
at org.jboss.seam.interceptors.BusinessProcessInterceptor.createProcess(BusinessProcessInterceptor.java:144)
at org.jboss.seam.interceptors.BusinessProcessInterceptor.afterInvocation(BusinessProcessInterceptor.java:107)
at org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:60)
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:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.interceptors.TransactionInterceptor.doInTransactionIfNecessary(TransactionInterceptor.java:34)
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:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.interceptors.RemoveInterceptor.removeIfNecessary(RemoveInterceptor.java:39)
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:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.ejb.SeamInterceptor.aroundInvokeInContexts(SeamInterceptor.java:73)
at org.jboss.seam.ejb.SeamInterceptor.aroundInvoke(SeamInterceptor.java:45)
at org.jboss.seam.interceptors.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:51)
at org.jboss.seam.interceptors.JavaBeanInterceptor.intercept(JavaBeanInterceptor.java:39)
at com.siemens.mcc.actor.metadataingester.MetadataIngesterJavaBean$$EnhancerByCGLIB$$86d897ab.startJbpmprocess()
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:585)
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129)
... 28 more
Caused by: java.lang.reflect.InvocationTargetException
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:585)
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:208)
at org.jbpm.graph.def.Node_$$_javassist_454.enter(Node_$$_javassist_454.java)
at org.jbpm.graph.def.Transition.take(Transition.java:119)
at org.jbpm.graph.def.Node.leave(Node.java:382)
at org.jbpm.graph.node.StartState.leave(StartState.java:70)
... 73 more
Caused by: org.jbpm.graph.def.DelegationException
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInstance.java:208)
at org.jbpm.taskmgmt.exe.TaskInstance.assign(TaskInstance.java:199)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:148)
at org.jbpm.graph.node.TaskNode.execute(TaskNode.java:167)
at org.jbpm.graph.def.Node.enter(Node.java:316)
... 82 more
Caused by: java.lang.reflect.InvocationTargetException
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:585)
at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:208)
at org.jbpm.graph.node.TaskNode_$$_javassist_425.raiseException(TaskNode_$$_javassist_425.java)
at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:343)
at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:248)
at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:212)
at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:182)
at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:166)
at org.jbpm.taskmgmt.exe.TaskInstance.setActorId(TaskInstance.java:289)
at org.jbpm.taskmgmt.exe.TaskInstance.setActorId(TaskInstance.java:263)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignmentActorIdExpr(TaskMgmtInstance.java:232)
at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInstance.java:196)
... 86 more
Caused by: org.jbpm.graph.def.DelegationException
at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:349)
at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:343)
... 101 more
Caused by: org.jbpm.JbpmException: couldn't evaluate expression '#{metadataIngesterJavaBean2.executeTask}'
at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:37)
at org.jbpm.graph.def.Action.execute(Action.java:119)
at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:235)
... 93 more
Caused by: org.jbpm.jpdl.el.ELException: An error occurred while invoking method "executeTask" on an instance of class com.siemens.mcc.actor.metadataingester.MetadataIngesterJavaBean2$$EnhancerByCGLIB$$e66dc537
at org.jbpm.jpdl.el.impl.Logger.logError(Logger.java:485)
at org.jbpm.jpdl.el.impl.Logger.logError(Logger.java:589)
at org.jbpm.jpdl.el.impl.ArraySuffix.evaluate(ArraySuffix.java:290)
at org.jbpm.jpdl.el.impl.ComplexValue.evaluate(ComplexValue.java:146)
at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:264)
at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:191)
at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:34)
... 95 more
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] >>> Begin call
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] destroying event context
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.Component] instantiating Seam component: org.jboss.seam.core.manager
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] destroying conversation context
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] flushing server-side conversation context
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] <<< End call
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] >>> Begin call
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] destroying event context
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.Component] instantiating Seam component: org.jboss.seam.core.manager
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] destroying conversation context
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] flushing server-side conversation context
2006-07-20 08:41:33,790 DEBUG [org.jboss.seam.contexts.Lifecycle] <<< End call
2006-07-20 08:45:56,566 WARN [org.jboss.tm.TransactionImpl] Transaction TransactionImpl:XidImpl[FormatId=257, GlobalId=bez0971c/33, BranchQual=, localId=33] timed out. status=STATUS_ACTIVE

[tom.baeyens]

when you invoke the bean method with the @EndTask how is the task identified ?

is it part of the original request ?

it seems you first start executing a process and then during that process execution (token) you want to end a task. this will only work if the task is not related to that token.

ps. zitten jullie in den atea in herentals ? (daar heb ik ook nog gezeten:-)

[be082032]

In the task node I had an event type='task-create',
in this event I make the call to the seam componentent :
action expression="#{metadataIngester.execute}

I supposed that in the task node the task would be identified by jbpm.


En ja Tom, we zitten inderdaad in herentals (ik ben een collega van Gunther Aerts, jou welbekend? -)

[be082032]

I noticed that the following annotation makes the difference in a seam component:

@Intercept(InterceptionType.ALWAYS)

I think this is what I needed.

[manuel.gentile]

do you have found a solution?