Hello,

I have a problem running a deployed Jbpm process that fires some Drools rules in an ActionHandler. When testing the process through the Jbpm API, it runs perfectly fine, though.

Unfortunately I could not find a helping hint for this issue on this forum or google.

The part of the Jpdl processs where the ActionHandler is invoked looks as follows:

 <task-node name="Receive Return">
 <task name="Receive Item" swimlane="Shipping">
 <controller>
 <variable name="tracking number" access="read"></variable>
 <variable name="number" access="read,write,required"></variable>
 </controller>
 </task>
 <event type="node-leave">
 <action name="Execute Shipping Rules" class="com.sample.action.FireRulesActionHandler">
 <rulefile>Sample.drl</rulefile>
 </action>
 </event>
 <transition name="" to="node1">
 </transition>
 </task-node>

As I said, when I execute the process through the Jbpm API, the process executes just fine, including the FireRulesActionHandler which fires all rules as it is supposed to. But when deploying the project to the server, it will deploy it, but during execution of the process, it would stop executing at that point where the ActionHandler is called. The server log looks as follows:

11:33:04,385 DEBUG [GraphElement] event 'node-leave' on 'TaskNode(Receive Return
)' for 'Token(/)'
11:33:04,395 DEBUG [GraphElement] executing action 'action[Execute Shipping Rule
s]'
11:33:04,395 DEBUG [JbpmContext] closing JbpmContext
11:33:04,395 DEBUG [Services] closing service 'persistence': org.jbpm.persistenc
e.db.DbPersistenceService@f6981a
11:33:04,395 DEBUG [DbPersistenceService] committing hibernate transaction
11:33:04,405 DEBUG [DbPersistenceService] closing hibernate session
11:33:04,405 DEBUG [Services] closing service 'logging': org.jbpm.logging.db.DbL
oggingService@e4c30a
11:33:04,405 DEBUG [Services] closing service 'authentication': org.jbpm.securit
y.authentication.DefaultAuthenticationService@c0fb53
11:33:04,405 ERROR [[FacesServlet]] Servlet.service() for servlet FacesServlet t
hrew exception
javax.faces.FacesException: Error calling action method of component with id tas
kform:transitionButton
at org.apache.myfaces.application.ActionListenerImpl.processAction(Actio
nListenerImpl.java:74)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:9
0)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1
64)
at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(Lifecycl
eImpl.java:271)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java
:86)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:94)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at org.jbpm.webapp.filter.AuthenticationFilter.doFilter(AuthenticationFi
lter.java:56)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at org.jbpm.web.JbpmContextFilter.doFilter(JbpmContextFilter.java:83)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi
lter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:178)
at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrinc
ipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit
yAssociationValve.java:159)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv
e.java:59)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo
int.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWor
kerThread.java:112)
at java.lang.Thread.run(Unknown Source)
Caused by: javax.faces.el.EvaluationException: Exception while invoking expressi
on #{taskBean.saveAndClose}
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java
:153)
at org.apache.myfaces.application.ActionListenerImpl.processAction(Actio
nListenerImpl.java:63)
... 34 more
Caused by: java.lang.NoClassDefFoundError: org/drools/RuleBase
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.jbpm.instantiation.FieldInstantiator.newInstance(FieldInstantiato
r.java:103)
at org.jbpm.instantiation.FieldInstantiator.instantiate(FieldInstantiato
r.java:48)
at org.jbpm.instantiation.Delegation.instantiate(Delegation.java:163)
at org.jbpm.instantiation.Delegation.getInstance(Delegation.java:125)
at org.jbpm.instantiation.Delegation$$FastClassByCGLIB$$6bae1598.invoke(
<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
at org.jbpm.instantiation.Delegation$$EnhancerByCGLIB$$3c64f0ee.getInsta
nce(<generated>)
at org.jbpm.graph.def.Action.execute(Action.java:122)
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.ja
va:182)
at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:166)
at org.jbpm.graph.def.Node.leave(Node.java:371)
at org.jbpm.graph.node.TaskNode.leave(TaskNode.java:198)
at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated
>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$56174330.leave(<generated>)

at org.jbpm.graph.exe.Token.signal(Token.java:178)
at org.jbpm.graph.exe.Token.signal(Token.java:123)
at org.jbpm.graph.exe.Token$$FastClassByCGLIB$$74df1c6e.invoke(<generate
d>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
at org.jbpm.graph.exe.Token$$EnhancerByCGLIB$$e6e7aac4.signal(<generated
>)
at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:441)
at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:355)
at org.jbpm.taskmgmt.exe.TaskInstance$$FastClassByCGLIB$$cb2c21af.invoke
(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
at org.jbpm.taskmgmt.exe.TaskInstance$$EnhancerByCGLIB$$fed0bc85.end(<ge
nerated>)
at org.jbpm.webapp.bean.TaskBean.saveAndClose(TaskBean.java:178)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java
:129)
... 35 more
11:33:06,618 DEBUG [JbpmContextInfo] creating jbpm context with service factorie
s '[message, scheduler, logging, persistence, authentication]'
11:33:06,618 DEBUG [JbpmContext] creating JbpmContext
11:33:06,618 DEBUG [StaticNotifier] woke up
11:33:06,628 DEBUG [DbPersistenceServiceFactory] creating persistence service
11:33:06,628 DEBUG [DbPersistenceService] creating hibernate session

I guess the line

Caused by: java.lang.NoClassDefFoundError: org/drools/RuleBase

is the essential one. Probably it's a problem concerning jar - files. But unfortunately I don't know which jar files are missing and how to include the missing jar files then. I am using the Jbpm server that came with the "jbpm-starters-kit-3.1.3".

I appreciate any hint that could help me to solve this problem. Many thanks in advance!
Best regards,
Maurice