2 Replies Latest reply on Dec 5, 2006 12:19 PM by Alberto Martinez

    JPDL + EL

    Alberto Martinez Newbie

      Hello.

      I have some problems with EL in a JPDL file. I am trying to use EL in an action inside my Process Definition file, but it doesn't work:

      JPDL:

      <?xml version="1.0" encoding="UTF-8"?>
      
      <process-definition
       xmlns="" name="estadosProcess">
       <start-state name="Disponible">
       <transition name="cambiarEstado" to="Elegir estado" />
       </start-state>
       <decision name="Elegir estado" expression="#{decidirEstado.estadoInicial}">
       <transition name="prestado" to="Prestado">
       <action expression="#{actualizarEstadoLibro.actualizar(actualizarEstadoLibro.disponible)}" />
       </transition>
       <transition name="sugerido" to="Sugerido"></transition>
       <transition name="eliminado" to="Eliminado"></transition>
       </decision>
       <task-node name="Prestado">
       <task name="devolver">
       <assignment actor-id="#{actor.id}"/>
       </task>
       <transition name="devuelto" to="Fin"></transition>
       </task-node>
      
       ....
      
      </process-definition>
      


      Action:
      public class ActualizarEstadoLibroImpl implements Serializable,
       ActualizarEstadoLibro {
      
       private static final long serialVersionUID = 0L;
      
       private Estados disponible = Estados.DISPONIBLE;
      
       public Estados getDisponible() {
       return disponible;
       }
      
       public void actualizar(Estados estado) {
       try {
       System.out.println ("//////////////// Actualizando " + estado.toString());
       } catch (Exception e) {
       System.out.println(e.getMessage());
       }
       }
      
       /**
       * @see org.fundacion.actions.libro.ActualizarEstadoLibro#destroy()
       */
       @Remove
       @Destroy
       public void destroy() {
       }
      }
      


      StrackTrace:
      17:34:47,384 ERROR [GraphElement] action threw exception: couldn't evaluate expression '#{actualizarEstadoLibro.actualizar(actualizarEstadoLibro.disponible)}'
      org.jbpm.JbpmException: couldn't evaluate expression '#{actualizarEstadoLibro.actualizar(actualizarEstadoLibro.disponible)}'
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:38)
       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.graph.def.Transition.take(Transition.java:106)
       at org.jbpm.graph.def.Node.leave(Node.java:383)
       at org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:136)
       at org.jbpm.graph.node.Decision.execute(Decision.java:146)
       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_$$_javassist_310.enter(Node_$$_javassist_310.java)
       at org.jbpm.graph.def.Transition.take(Transition.java:119)
       at org.jbpm.graph.def.Node.leave(Node.java:383)
       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_$$_javassist_310.leave(Node_$$_javassist_310.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.core.BusinessProcess.createProcess(BusinessProcess.java:117)
       at org.jboss.seam.interceptors.BusinessProcessInterceptor.afterInvocation(BusinessProcessInterceptor.java:94)
       at org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:50)
       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:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.intercept.RootInterceptor.createSeamInvocationContext(RootInterceptor.java:144)
       at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:129)
       at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:102)
       at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:49)
       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.invokeInOurTx(TxPolicy.java:79)
       at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)
       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:81)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
       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:188)
       at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:98)
       at $Proxy362.prestar(Unknown Source)
       at org.fundacion.actions.libro.PrestarLibro$$FastClassByCGLIB$$9ae75dd6.invoke(<generated>)
       at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
       at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:45)
       at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:69)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:55)
       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:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.interceptors.ExceptionInterceptor.handleExceptions(ExceptionInterceptor.java:28)
       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:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.intercept.RootInterceptor.createSeamInvocationContext(RootInterceptor.java:144)
       at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:129)
       at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:102)
       at org.jboss.seam.intercept.ClientSideInterceptor.interceptInvocation(ClientSideInterceptor.java:78)
       at org.jboss.seam.intercept.ClientSideInterceptor.intercept(ClientSideInterceptor.java:47)
       at org.jboss.seam.intercept.Proxy$$EnhancerByCGLIB$$b44c2084.prestar(<generated>)
       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.jboss.seam.actionparam.ActionParamBindingHelper.invokeTheExpression(ActionParamBindingHelper.java:59)
       at org.jboss.seam.actionparam.ActionParamMethodBinding.invoke(ActionParamMethodBinding.java:71)
       at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
       at javax.faces.component.UICommand.broadcast(UICommand.java:106)
       at javax.faces.component.UIData.broadcast(UIData.java:338)
       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.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: Encountered "(", expected one of ["}", ".", ">", "gt", "<", "lt", "==", "eq", "<=", "le", ">=", "ge", "!=", "ne", "[", "+", "-", "*", "/", "div", "%", "mod", "and", "&&", "or", "||", "?"]
       at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.parseExpressionString(ExpressionEvaluatorImpl.java:321)
       at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:251)
       at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:191)
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:34)
       ... 131 more
      17:34:47,396 INFO [STDOUT] Hibernate: select exceptionh0_.TRANSITION_ as TRANSITION8_1_, exceptionh0_.ID_ as ID1_1_, exceptionh0_.GRAPHELEMENTINDEX_ as GRAPHELE6_1_, exceptionh0_.ID_ as ID1_385_0_, exceptionh0_.EXCEPTIONCLASSNAME_ as EXCEPTIO2_385_0_, exceptionh0_.TYPE_ as TYPE3_385_0_, exceptionh0_.GRAPHELEMENT_ as GRAPHELE4_385_0_ from JBPM_EXCEPTIONHANDLER exceptionh0_ where exceptionh0_.TRANSITION_=?
      17:34:47,405 INFO [STDOUT] Hibernate: select node0_.ID_ as ID1_381_0_, node0_.NAME_ as NAME3_381_0_, node0_.PROCESSDEFINITION_ as PROCESSD4_381_0_, node0_.ISASYNC_ as ISASYNC5_381_0_, node0_.ACTION_ as ACTION6_381_0_, node0_.SUPERSTATE_ as SUPERSTATE7_381_0_, node0_.SUBPROCESSDEFINITION_ as SUBPROCE8_381_0_, node0_.DECISIONEXPRESSION_ as DECISION9_381_0_, node0_.DECISIONDELEGATION as DECISIO10_381_0_, node0_.SIGNAL_ as SIGNAL11_381_0_, node0_.CREATETASKS_ as CREATET12_381_0_, node0_.ENDTASKS_ as ENDTASKS13_381_0_, node0_.CLASS_ as CLASS2_381_0_ from JBPM_NODE node0_ where node0_.ID_=?
      17:34:47,449 INFO [STDOUT] Hibernate: select exceptionh0_.PROCESSDEFINITION_ as PROCESSD5_1_, exceptionh0_.ID_ as ID1_1_, exceptionh0_.GRAPHELEMENTINDEX_ as GRAPHELE6_1_, exceptionh0_.ID_ as ID1_385_0_, exceptionh0_.EXCEPTIONCLASSNAME_ as EXCEPTIO2_385_0_, exceptionh0_.TYPE_ as TYPE3_385_0_, exceptionh0_.GRAPHELEMENT_ as GRAPHELE4_385_0_ from JBPM_EXCEPTIONHANDLER exceptionh0_ where exceptionh0_.PROCESSDEFINITION_=?
      17:34:47,457 INFO [STDOUT] Hibernate: insert into JBPM_VARIABLEINSTANCE (NAME_, CONVERTER_, TOKEN_, TOKENVARIABLEMAP_, PROCESSINSTANCE_, DATEVALUE_, CLASS_) values (?, ?, ?, ?, ?, ?, 'D')
      17:34:47,461 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, VARIABLEINSTANCE_, CLASS_) values (?, ?, ?, ?, ?, 'R')
      17:34:47,470 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, VARIABLEINSTANCE_, OLDDATEVALUE_, NEWDATEVALUE_, CLASS_) values (?, ?, ?, ?, ?, ?, ?, 'E')
      17:34:47,473 INFO [STDOUT] Hibernate: insert into JBPM_BYTEARRAY (NAME_) values (?)
      17:34:47,477 INFO [STDOUT] Hibernate: insert into JBPM_VARIABLEINSTANCE (NAME_, CONVERTER_, TOKEN_, TOKENVARIABLEMAP_, PROCESSINSTANCE_, BYTEARRAYVALUE_, CLASS_) values (?, ?, ?, ?, ?, ?, 'B')
      17:34:47,480 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, VARIABLEINSTANCE_, CLASS_) values (?, ?, ?, ?, ?, 'R')
      17:34:47,484 INFO [STDOUT] Hibernate: insert into JBPM_BYTEARRAY (NAME_) values (?)
      17:34:47,488 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, VARIABLEINSTANCE_, OLDBYTEARRAY_, NEWBYTEARRAY_, CLASS_) values (?, ?, ?, ?, ?, ?, ?, 'B')
      17:34:47,492 INFO [STDOUT] Hibernate: insert into JBPM_VARIABLEINSTANCE (NAME_, CONVERTER_, TOKEN_, TOKENVARIABLEMAP_, PROCESSINSTANCE_, STRINGVALUE_, CLASS_) values (?, ?, ?, ?, ?, ?, 'S')
      17:34:47,495 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, VARIABLEINSTANCE_, CLASS_) values (?, ?, ?, ?, ?, 'R')
      17:34:47,500 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, VARIABLEINSTANCE_, OLDSTRINGVALUE_, NEWSTRINGVALUE_, CLASS_) values (?, ?, ?, ?, ?, ?, ?, 'U')
      17:34:47,504 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, TRANSITION_, CLASS_) values (?, ?, ?, ?, ?, 'S')
      17:34:47,508 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, TRANSITION_, SOURCENODE_, DESTINATIONNODE_, CLASS_) values (?, ?, ?, ?, ?, ?, ?, 'T')
      17:34:47,513 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, NODE_, ENTER_, LEAVE_, DURATION_, CLASS_) values (?, ?, ?, ?, ?, ?, ?, ?, 'N')
      17:34:47,525 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, TRANSITION_, SOURCENODE_, DESTINATIONNODE_, CLASS_) values (?, ?, ?, ?, ?, ?, ?, 'T')
      17:34:47,529 INFO [STDOUT] Hibernate: insert into JBPM_LOG (INDEX_, DATE_, TOKEN_, PARENT_, EXCEPTION_, ACTION_, CLASS_) values (?, ?, ?, ?, ?, ?, 'A')
      17:34:47,544 INFO [STDOUT] Hibernate: insert into JBPM_MODULEINSTANCE (PROCESSINSTANCE_, TASKMGMTDEFINITION_, CLASS_) values (?, ?, 'T')
      17:34:47,560 INFO [STDOUT] Hibernate: insert into JBPM_MODULEINSTANCE (PROCESSINSTANCE_, CLASS_) values (?, 'C')
      17:34:47,565 INFO [STDOUT] Hibernate: insert into JBPM_TOKENVARIABLEMAP (TOKEN_, CONTEXTINSTANCE_) values (?, ?)
      17:34:47,610 INFO [STDOUT] Hibernate: update JBPM_TOKEN set VERSION_=?, NAME_=?, START_=?, END_=?, NODEENTER_=?, NEXTLOGINDEX_=?, ISABLETOREACTIVATEPARENT_=?, ISTERMINATIONIMPLICIT_=?, ISSUSPENDED_=?, NODE_=?, PROCESSINSTANCE_=?, PARENT_=?, SUBPROCESSINSTANCE_=? where ID_=? and VERSION_=?
      17:34:47,613 INFO [STDOUT] Hibernate: update JBPM_PROCESSINSTANCE set VERSION_=?, START_=?, END_=?, ISSUSPENDED_=?, PROCESSDEFINITION_=?, ROOTTOKEN_=?, SUPERPROCESSTOKEN_=? where ID_=? and VERSION_=?
      17:34:47,615 INFO [STDOUT] Hibernate: update JBPM_VARIABLEINSTANCE set NAME_=?, CONVERTER_=?, TOKEN_=?, TOKENVARIABLEMAP_=?, PROCESSINSTANCE_=?, DATEVALUE_=? where ID_=?
      17:34:47,618 INFO [STDOUT] Hibernate: update JBPM_VARIABLEINSTANCE set NAME_=?, CONVERTER_=?, TOKEN_=?, TOKENVARIABLEMAP_=?, PROCESSINSTANCE_=?, BYTEARRAYVALUE_=? where ID_=?
      17:34:47,630 INFO [STDOUT] Hibernate: update JBPM_VARIABLEINSTANCE set NAME_=?, CONVERTER_=?, TOKEN_=?, TOKENVARIABLEMAP_=?, PROCESSINSTANCE_=?, STRINGVALUE_=? where ID_=?
      17:34:47,633 INFO [STDOUT] Hibernate: insert into JBPM_BYTEBLOCK (PROCESSFILE_, INDEX_, BYTES_) values (?, ?, ?)
      17:34:47,635 INFO [STDOUT] Hibernate: insert into JBPM_BYTEBLOCK (PROCESSFILE_, INDEX_, BYTES_) values (?, ?, ?)
      17:34:47,635 INFO [STDOUT] Hibernate: insert into JBPM_BYTEBLOCK (PROCESSFILE_, INDEX_, BYTES_) values (?, ?, ?)
      17:34:47,636 INFO [STDOUT] Hibernate: insert into JBPM_BYTEBLOCK (PROCESSFILE_, INDEX_, BYTES_) values (?, ?, ?)
      17:34:47,638 INFO [STDOUT] Hibernate: update JBPM_MODULEINSTANCE set PROCESSINSTANCE_=?, NAME_=? where ID_=?
      17:34:47,641 INFO [STDOUT] Hibernate: update JBPM_MODULEINSTANCE set PROCESSINSTANCE_=?, NAME_=? where ID_=?
      17:34:47,654 INFO [ExceptionInterceptor] no exceptions.xml file found
      17:34:47,670 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
      javax.faces.FacesException: Error calling action method of component with id _id12_0:_id31
       at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)
       at javax.faces.component.UICommand.broadcast(UICommand.java:106)
       at javax.faces.component.UIData.broadcast(UIData.java:338)
       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.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 #{prestarLibro.prestar}
       at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:153)
       at org.jboss.seam.actionparam.ActionParamBindingHelper.invokeTheExpression(ActionParamBindingHelper.java:59)
       at org.jboss.seam.actionparam.ActionParamMethodBinding.invoke(ActionParamMethodBinding.java:71)
       at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
       ... 25 more
      Caused by: java.lang.reflect.UndeclaredThrowableException
       at $Proxy362.prestar(Unknown Source)
       at org.fundacion.actions.libro.PrestarLibro$$FastClassByCGLIB$$9ae75dd6.invoke(<generated>)
       at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
       at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:45)
       at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:69)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:55)
       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:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.interceptors.ExceptionInterceptor.handleExceptions(ExceptionInterceptor.java:28)
       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:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.intercept.RootInterceptor.createSeamInvocationContext(RootInterceptor.java:144)
       at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:129)
       at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:102)
       at org.jboss.seam.intercept.ClientSideInterceptor.interceptInvocation(ClientSideInterceptor.java:78)
       at org.jboss.seam.intercept.ClientSideInterceptor.intercept(ClientSideInterceptor.java:47)
       at org.jboss.seam.intercept.Proxy$$EnhancerByCGLIB$$b44c2084.prestar(<generated>)
       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_$$_javassist_310.leave(Node_$$_javassist_310.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.core.BusinessProcess.createProcess(BusinessProcess.java:117)
       at org.jboss.seam.interceptors.BusinessProcessInterceptor.afterInvocation(BusinessProcessInterceptor.java:94)
       at org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:50)
       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:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.intercept.RootInterceptor.createSeamInvocationContext(RootInterceptor.java:144)
       at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:129)
       at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:102)
       at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:49)
       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.invokeInOurTx(TxPolicy.java:79)
       at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)
       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:81)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
       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:188)
       at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:98)
       ... 61 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_$$_javassist_310.enter(Node_$$_javassist_310.java)
       at org.jbpm.graph.def.Transition.take(Transition.java:119)
       at org.jbpm.graph.def.Node.leave(Node.java:383)
       at org.jbpm.graph.node.StartState.leave(StartState.java:70)
       ... 112 more
      Caused by: org.jbpm.graph.def.DelegationException
       at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:352)
       at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:346)
       at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:249)
       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.graph.def.Transition.take(Transition.java:106)
       at org.jbpm.graph.def.Node.leave(Node.java:383)
       at org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:136)
       at org.jbpm.graph.node.Decision.execute(Decision.java:146)
       at org.jbpm.graph.def.Node.enter(Node.java:316)
       ... 121 more
      Caused by: org.jbpm.JbpmException: couldn't evaluate expression '#{actualizarEstadoLibro.actualizar(actualizarEstadoLibro.disponible)}'
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:38)
       at org.jbpm.graph.def.Action.execute(Action.java:119)
       at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:235)
       ... 129 more
      Caused by: org.jbpm.jpdl.el.ELException: Encountered "(", expected one of ["}", ".", ">", "gt", "<", "lt", "==", "eq", "<=", "le", ">=", "ge", "!=", "ne", "[", "+", "-", "*", "/", "div", "%", "mod", "and", "&&", "or", "||", "?"]
       at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.parseExpressionString(ExpressionEvaluatorImpl.java:321)
       at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:251)
       at org.jbpm.jpdl.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:191)
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:34)
       ... 131 more
      


      I think that the problem is in the param of the method and the EL, but I dont know how to solve it.

      Any ideas?

      Thanks.