How to integrate jBpm into EJB3 based application

[alduro]

Hi,
I´ve been reading a lot of docs, wikis and tutorials and I didn´t find a way to integrate jBpm into a EJB3 based app.
I´ve got a service layer with EJB3 session beans that expose all functionalities. Behind them are the EJB3 entities. All of them are interacting through IoC (injecting resources and persistance manager).

I would like to interact with jBpm service the same way from services layer and calling other EJB3 services from jbpm actions through IoC. Is this possible ? How can I manage 2 different persistence managers (one for the domain model application and the other one for the jbpm work tables model) ? Is it possible to inject a Jbpm Context into a EJB3 session bean ?

I´ve tried using jbpm 3.2 with jboss 4.0.5 but the WAR console file has a lot of problems with JSF libraries. Now I´m trying with 3.1 starter-kit version.

Thanks in advance.
Aldo.

[kukeltje]

3.2 lots of problems with jsf libraties? What kind of problems. Runs fine here....

[koen.aers]

To further answer Aldo's question about combining EJB3 and jBPM, you should wrap the jBPM API you need in a stateless session bean. You can inject your EJB3 persistence context in this session bean and use it to programmatically change the session on your jBPM context. In that way you don't use two persistence managers but only the EJB3 one.

Regards,
Koen

[alduro]

Thanks kukeltje for your quick answer.
As to question, this is the error stacktrace:
(It seems there are some compatibility issues with JSF libraries included into jbpm-console.war. This problem disappear when I replaced jsf libraries for jsf 1.2_05 version. My Jboss version: 4.0.5 GA, jBpm version 3.2. Thanks in advance.

2007-10-26 10:02:19,101 DEBUG [org.jboss.web.tomcat.tc5.TomcatDeployer] AbstractWebContainer.parseWebAppDescriptors, End
2007-10-26 10:02:19,132 DEBUG [org.jboss.web.tomcat.tc5.TomcatDeployer] Using session cookies default setting
2007-10-26 10:02:19,351 ERROR [STDERR] 26/10/2007 10:02:19 com.sun.faces.config.ConfigureListener contextInitialized
INFO: Initializing Sun's JavaServer Faces implementation (1.2_03-b09-FCS) for context 'null'
2007-10-26 10:02:20,054 ERROR [STDERR] 26/10/2007 10:02:20 com.sun.faces.spi.InjectionProviderFactory createInstance
ADVERTENCIA: JSF1033: Resource injection is DISABLED.
2007-10-26 10:02:20,211 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] Added url: file:/C:/Server/jboss-4.0.5.GA/server/default/tmp/aopdynclasses/ucl65054/?dynamic=true, to ucl: org.jboss.mx.loading.UnifiedClassLoader3@16fb2f8{ url=file:/C:/Server/jboss-4.0.5.GA/server/default/tmp/deploy/tmp65053jbpm-enterprise.ear ,addedOrder=49}
2007-10-26 10:02:20,242 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/jbpm-console]] Exception sending context initialized event to listener instance of class com.sun.faces.config.ConfigureListener
java.lang.IndexOutOfBoundsException: Invalid start=695 end=1 length=696
at org.jboss.lang.JBossStringBuilder.delete(JBossStringBuilder.java:256)
at org.jboss.lang.JBossStringBuilder.deleteCharAt(JBossStringBuilder.java:269)
at com.sun.faces.renderkit.RenderKitUtils.loadSunJsfJs(RenderKitUtils.java:1067)
at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:468)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3763)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4211)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
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.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.apache.catalina.core.StandardContext.init(StandardContext.java:5052)
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.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeployInternal(TomcatDeployer.java:297)
at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeploy(TomcatDeployer.java:103)
at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:371)
at org.jboss.web.WebModule.startModule(WebModule.java:83)
at org.jboss.web.WebModule.startService(WebModule.java:61)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
at $Proxy0.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:417)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy42.start(Unknown Source)
at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:466)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
at org.jboss.ws.integration.jboss.DeployerInterceptor.start(DeployerInterceptor.java:92)
at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)
at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy43.start(Unknown Source)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1015)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy8.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
at $Proxy0.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:417)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy4.start(Unknown Source)
at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:766)
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.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy5.deploy(Unknown Source)
at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)
at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)
at org.jboss.Main.boot(Main.java:200)
at org.jboss.Main$1.run(Main.java:490)

[alduro]

So Koen, the idea would be:
Having a stateless session bean as facade for jBpm workflows instantiations. I could inject jBpmContext resource into them and starting workflows. Then each jBpm Action could call the rest of EJB3 session beans using IoC ? or do I need to do some delegate class for calling EJB3 domain session bean from jBpm Action ?

Thanks in advance.

[deady]

"alduro" wrote:
Thanks kukeltje for your quick answer.
As to question, this is the error stacktrace:
(It seems there are some compatibility issues with JSF libraries included into jbpm-console.war. This problem disappear when I replaced jsf libraries for jsf 1.2_05 version. My Jboss version: 4.0.5 GA, jBpm version 3.2. Thanks in advance.

can you define more exactly which libraries did you replace? those, which came with jbpm-console.war or those, which live in /tomcat/jsf-lisb/ ? I have the same problem as you.

[alduro]

Deady, I replaced the libraries that come into jbpm-console.war. It is not a smooth solution, but it works so far.
Aldo.

[deady]

I replaced jsf libs with 1.2-b20-FCS (found here:

https://javaserverfaces.dev.java.net/servlets/ProjectDocumentList?folderID=5420&expandFolder=5420&folderID=5420

), now jbpm-console deploys ok, but I recieve this error when I go to http://localhost:8080/jbpm-console/:

12:01:37,265 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
java.lang.NoSuchMethodError: javax.faces.application.ViewHandler.initView(Ljavax/faces/context/FacesContext;)V
 at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:124)
 at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:266)
 at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:132)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:139)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
 at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
 at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
 at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
 at org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(FormAuthenticator.java:315)
 at org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:243)
 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
 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$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
 at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
 at java.lang.Thread.run(Thread.java:595)
12:01:37,266 WARN [FormAuthenticator] Unexpected error forwarding to login page
javax.servlet.ServletException: javax.faces.application.ViewHandler.initView(Ljavax/faces/context/FacesContext;)V
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:154)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
 at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
 at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
 at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
 at org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(FormAuthenticator.java:315)
 at org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:243)
 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
 at org.apache.coyote.http11.Http11BaseProtocol$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)

[deady]

I have the same error with jas-1.2_05

[deady]

"Deady" wrote:
I have the same error with jas-1.2_05

jsf-1.2_05

[estaub]

See http://fisheye5.cenqua.com/browse/javaserverfaces-sources/jsf-ri/src/com/sun/faces/renderkit/RenderKitUtils.java?r1=1.34&r2=1.35

I don't know anything about jsf, but the problem was a race condition between threads, and was fixed in this diff. If it's easy to config down to a single worker thread, you can quickly test this hypothesis. (I don't know Tomcat, either!)

-Ed Staub

[deady]

I've downloaded jsf-1.2_07 sources: they already contain pathched version of this class, but it doesn't work.


The problem is in the libs in my /server/tomcat/jsf-libs/.
I have there:

[Deady@pc jsf-libs]$ ls
commons-beanutils-1.7.0.jar commons-validator-1.3.1.jar jstl.jar richfaces-ui-3.1.2.GA.jar
commons-codec-1.3.jar el-api.jar kaptcha-2.0.jar standard.jar
commons-collections-3.2.jar el-ri.jar myfaces-api-1.1.5.jar tomahawk-1.1.6.jar
commons-digester-1.8.jar htmLib.jar myfaces-impl-1.1.5.jar tomahawk-sandbox-1.1.7-SNAPSHOT.jar
commons-discovery-0.4.jar j4j.jar oscache-2.2.jar
commons-lang-2.1.jar jakarta-oro-2.0.8.jar richfaces-api-3.1.2.GA.jar
commons-logging-1.1.jar jsf-facelets.jar richfaces-impl-3.1.2.GA.jar

if i remove all of then and copy jars from jbpm suite then everything works OK.
I tryed deleting jars one by one: imho the problem is with tomahawk jars.