[EJB 3.0] - Simplest possible stateless bean
by Renen
Having worked happily with EJB2 code for a couple of years, I attempted to get an EJB3 stateless session bean to work.
I failed.
My EJB code:
| @Stateless
| public class T2Bean {
|
| public void doIt(int i) {
| System.out.println("in do it!: " + i);
| }
|
| }
|
In a JSP page, I attempt to access the bean as follows:
| InitialContext ctx = new InitialContext();
| T2Bean t = (T2Bean)ctx.lookup(T2Bean.class.getName());
| t.doIt(4);
|
The ejb is packaged in a JAR and deployed. The JSP is contained in a WAR. And both are deployed within a single EAR.
I get an error: javax.naming.NameNotFoundException: za.co.oneTwoOne.T2Bean not bound
What am I doing wrong?
My understanding is that EJB3 should simplify things, eliminate the need to declare interfaces, and herald the new world order of love and happiness. Clearly things are not so simple! ;-) Or (hopefully), I'm missing something obvious.
If somebody can point me in the right direction, I will happily add the solution to the wiki for the benefit of future generations!
Renen.
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4086004#4086004
Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4086004
18 years, 10 months
[JBoss jBPM] - Lock problems after migrating to JBPM 3.2 and Seam 2.0
by chawax
Hello,
I had an application running on JBoss 4.0.5 with Seam 1.2.1 and JBpm 3.1. It had a business process with nodes configured as following :
<node name="Envoi e-mail au déclarant">
| <transition to="Afficher RTT OK" />
| <action expression="#{demandeAbsenceAction.envoyerEmailDeclarant}" />
| </node>
"demandeAbsenceAction" is a Seam component with processInstance injected. The method is as following :
public void envoyerEmailDeclarant() throws Exception {
| log("Envoi d'un e-mail au déclarant !");
| processInstance.signal();
| }
But a few days ago I migrated to Seam 2.0 and JBpm 3.2, running on JBoss 4.2. And I have now an error I don't understand, which is thrown on the "signal" call, with this stack trace :
2007-09-19 12:23:57,465 ERROR [org.jbpm.graph.def.GraphElement] action threw exception: couldn't evaluate expression '#{demandeAbsenceAction.envoyerEmailDeclarant}'
| org.jbpm.JbpmException: couldn't evaluate expression '#{demandeAbsenceAction.envoyerEmailDeclarant}'
| at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:39)
| at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:26)
| at org.jbpm.graph.def.Action.execute(Action.java:118)
| 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:173)
| at org.jbpm.graph.def.Action_$$_javassist_80.execute(Action_$$_javassist_80.java)
| at org.jboss.seam.bpm.SeamUserCodeInterceptor$1.process(SeamUserCodeInterceptor.java:80)
| at org.jboss.seam.bpm.SeamUserCodeInterceptor$ContextualCall.run(SeamUserCodeInterceptor.java:33)
| at org.jboss.seam.bpm.SeamUserCodeInterceptor.executeAction(SeamUserCodeInterceptor.java:74)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:253)
| at org.jbpm.graph.def.Node.execute(Node.java:338)
| at org.jbpm.graph.def.Node.enter(Node.java:318)
| 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:173)
| at org.jbpm.graph.def.Node_$$_javassist_66.enter(Node_$$_javassist_66.java)
| at org.jbpm.graph.def.Transition.take(Transition.java:151)
| at org.jbpm.graph.def.Node.leave(Node.java:393)
| at org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:136)
| at org.jbpm.graph.node.Decision.execute(Decision.java:152)
| at org.jbpm.graph.def.Node.enter(Node.java:318)
| 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:173)
| at org.jbpm.graph.def.Node_$$_javassist_66.enter(Node_$$_javassist_66.java)
| at org.jbpm.graph.def.Transition.take(Transition.java:151)
| at org.jbpm.graph.def.Node.leave(Node.java:393)
| 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:173)
| at org.jbpm.graph.def.Node_$$_javassist_66.leave(Node_$$_javassist_66.java)
| at org.jbpm.graph.exe.Token.signal(Token.java:194)
| at org.jbpm.graph.exe.Token.signal(Token.java:139)
| at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:270)
| at org.jboss.seam.bpm.BusinessProcess.afterCreateProcess(BusinessProcess.java:147)
| at org.jboss.seam.bpm.BusinessProcess.createProcess(BusinessProcess.java:122)
| at org.jboss.seam.bpm.BusinessProcessInterceptor.afterInvocation(BusinessProcessInterceptor.java:106)
| at org.jboss.seam.bpm.BusinessProcessInterceptor.aroundInvoke(BusinessProcessInterceptor.java:49)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
| at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:53)
| 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.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
| at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
| at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:83)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
| at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:204)
| at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:100)
| at $Proxy188.valider(Unknown Source)
| 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:21)
| at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
| at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:72)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
| at org.jboss.seam.ejb.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:41)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
| at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:50)
| at org.javassist.tmp.java.lang.Object_$$_javassist_105.valider(Object_$$_javassist_105.java)
| 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.jbpm.jpdl.el.impl.BeanMethod.invoke(BeanMethod.java:19)
| at org.jbpm.jpdl.el.impl.ArraySuffix.evaluate(ArraySuffix.java:287)
| 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:35)
| at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:26)
| at org.jbpm.graph.def.Action.execute(Action.java:118)
| at org.jboss.seam.bpm.SeamUserCodeInterceptor.executeAction(SeamUserCodeInterceptor.java:70)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:253)
| at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:220)
| at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:190)
| at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:174)
| at org.jbpm.graph.def.Transition.take(Transition.java:138)
| at org.jbpm.graph.def.Node.leave(Node.java:393)
| at org.jbpm.graph.exe.Token.signal(Token.java:194)
| at org.jbpm.graph.exe.Token.signal(Token.java:157)
| at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:282)
| at org.jboss.seam.pageflow.Pageflow.signal(Pageflow.java:465)
| at org.jboss.seam.pageflow.Pageflow.navigate(Pageflow.java:324)
| at org.jboss.seam.jsf.SeamNavigationHandler.handleNavigation(SeamNavigationHandler.java:40)
| at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:119)
| at javax.faces.component.UICommand.broadcast(UICommand.java:383)
| at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:186)
| at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:164)
| at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:352)
| at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)
| at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
| at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:307)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
| at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:63)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:87)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:63)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:46)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
| at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
| at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:40)
| at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
| at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:140)
| 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:230)
| at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
| at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
| at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
| at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
| at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
| at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
| at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
| at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
| at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
| at java.lang.Thread.run(Thread.java:595)
| Caused by: org.jbpm.JbpmException: this token is locked by token[1]
| at org.jbpm.graph.exe.Token.signal(Token.java:184)
| at org.jbpm.graph.exe.Token.signal(Token.java:139)
| at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:270)
| at fr.horoquartz.t4.bpm.absence.DemandeAbsenceAction.envoyerEmailDeclarant(DemandeAbsenceAction.java:41)
| 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:21)
| at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
| at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.persistence.ManagedEntityIdentityInterceptor.aroundInvoke(ManagedEntityIdentityInterceptor.java:43)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.core.ConversationInterceptor.aroundInvoke(ConversationInterceptor.java:63)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.bpm.BusinessProcessInterceptor.aroundInvoke(BusinessProcessInterceptor.java:49)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
| at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:151)
| at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:87)
| at fr.horoquartz.t4.bpm.absence.DemandeAbsenceAction_$$_javassist_109.envoyerEmailDeclarant(DemandeAbsenceAction_$$_javassist_109.java)
| 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.jbpm.jpdl.el.impl.BeanMethod.invoke(BeanMethod.java:19)
| at org.jbpm.jpdl.el.impl.ArraySuffix.evaluate(ArraySuffix.java:287)
| 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:35)
| ... 167 more
|
It talks about locked tokens, but I can't understand what it means. And overall I can't understand why I have this problem with JBpm 3.2, and not JBpm 3.1. Anyone has an idea ?
Thanks in advance ;)
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4086001#4086001
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18 years, 10 months