3 Replies Latest reply on Nov 29, 2007 12:29 AM by pieter martin

    pageflow and exception question

    pieter martin Newbie

      Hi,

      I am struggling to get exception handling to work with jpdl pageflows. Not sure whether it is suppose to work or whether the code needs decision elements everywhere to check for failures.

      Currently I get an exception with the page breaking

      my pageflow-definition is as follows

       <page name="captureContactDetails" view-id="/signyouup/contactDetails.xhtml" no-conversation-view-id="/signyouup/choosePhone.xhtml">
       <redirect />
       <transition name="back" to="capturePhoneDetails">
       </transition>
       <transition name="next" to="isCaptureContactSuccessful">
       <action expression="#{webCustomerAction.persistContact}" />
       </transition>
       </page>
      


      the action class
      @Name("webCustomerAction")
      @Scope(ScopeType.CONVERSATION)
      public class WebCustomerAction extends SeamedAction {
      
       public String persistContact() {
       log.info("persistContact");
       if (true) {
       throw new SelfcareApplicationException("O my what absolute horror!");
       }
       }
      }
      


      in pages...

       <exception>
       <end-conversation/>
       <redirect view-id="/error.xhtml">
       <message severity="error">#{org.jboss.seam.handledException.message}</message>
       </redirect>
       </exception>
      


      The stack trace...
      22:11:13,652 INFO [WebCustomerAction] persistContact
      22:11:13,697 ERROR [GraphElement] action threw exception: couldn't evaluate expression '#{webCustomerAction.persistContact}'
      org.jbpm.JbpmException: couldn't evaluate expression '#{webCustomerAction.persistContact}'
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:43)
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:30)
       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:262)
       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:394)
       at org.jbpm.graph.exe.Token.signal(Token.java:195)
       at org.jbpm.graph.exe.Token.signal(Token.java:158)
       at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:283)
       at org.jboss.seam.pageflow.Pageflow.signal(Pageflow.java:477)
       at org.jboss.seam.pageflow.Pageflow.navigate(Pageflow.java:336)
       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:184)
       at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:162)
       at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:350)
       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.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
       at org.jboss.seam.servlet.SeamFilter$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:60)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       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:432)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
       at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
       at java.lang.Thread.run(Thread.java:595)
      Caused by: javax.el.PropertyNotFoundException: Property 'persistContact' not found on type com.yannitech.virgin.selfcare.customer.manager.WebCustomerAction_$$_javassist_2
       at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:193)
       at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:170)
       at javax.el.BeanELResolver.property(BeanELResolver.java:279)
       at javax.el.BeanELResolver.getValue(BeanELResolver.java:60)
       at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
       at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
       at org.jboss.el.parser.AstPropertySuffix.getValue(AstPropertySuffix.java:53)
       at org.jboss.el.parser.AstValue.getValue(AstValue.java:67)
       at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
       at org.jboss.seam.bpm.SeamExpressionEvaluator$1.evaluate(SeamExpressionEvaluator.java:85)
       at org.jboss.seam.bpm.SeamExpressionEvaluator.evaluate(SeamExpressionEvaluator.java:36)
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:39)
       ... 59 more
      22:11:13,700 WARN [lifecycle] couldn't evaluate expression '#{webCustomerAction.persistContact}'
      org.jbpm.JbpmException: couldn't evaluate expression '#{webCustomerAction.persistContact}'
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:43)
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:30)
       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:262)
       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:394)
       at org.jbpm.graph.exe.Token.signal(Token.java:195)
       at org.jbpm.graph.exe.Token.signal(Token.java:158)
       at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:283)
       at org.jboss.seam.pageflow.Pageflow.signal(Pageflow.java:477)
       at org.jboss.seam.pageflow.Pageflow.navigate(Pageflow.java:336)
       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:184)
       at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:162)
       at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:350)
       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.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
       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:60)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       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:432)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
       at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
       at java.lang.Thread.run(Thread.java:595)
      Caused by: javax.el.PropertyNotFoundException: Property 'persistContact' not found on type com.yannitech.virgin.selfcare.customer.manager.WebCustomerAction_$$_javassist_2
       at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:193)
       at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:170)
       at javax.el.BeanELResolver.property(BeanELResolver.java:279)
       at javax.el.BeanELResolver.getValue(BeanELResolver.java:60)
       at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
       at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
       at org.jboss.el.parser.AstPropertySuffix.getValue(AstPropertySuffix.java:53)
       at org.jboss.el.parser.AstValue.getValue(AstValue.java:67)
       at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
       at org.jboss.seam.bpm.SeamExpressionEvaluator$1.evaluate(SeamExpressionEvaluator.java:85)
       at org.jboss.seam.bpm.SeamExpressionEvaluator.evaluate(SeamExpressionEvaluator.java:36)
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:39)
       ... 59 more
      22:11:13,701 WARN [lifecycle] executePhase(INVOKE_APPLICATION 5,com.sun.faces.context.FacesContextImpl@1aa39a3) threw exception
      javax.faces.FacesException: couldn't evaluate expression '#{webCustomerAction.persistContact}'
       at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:105)
       at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
       at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
       at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
       at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
       at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
       at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
       at java.lang.Thread.run(Thread.java:595)
      Caused by: org.jbpm.JbpmException: couldn't evaluate expression '#{webCustomerAction.persistContact}'
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:43)
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:30)
       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:262)
       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:394)
       at org.jbpm.graph.exe.Token.signal(Token.java:195)
       at org.jbpm.graph.exe.Token.signal(Token.java:158)
       at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:283)
       at org.jboss.seam.pageflow.Pageflow.signal(Pageflow.java:477)
       at org.jboss.seam.pageflow.Pageflow.navigate(Pageflow.java:336)
       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:184)
       at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:162)
       at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:350)
       at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)
       ... 38 more
      Caused by: javax.el.PropertyNotFoundException: Property 'persistContact' not found on type com.yannitech.virgin.selfcare.customer.manager.WebCustomerAction_$$_javassist_2
       at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:193)
       at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:170)
       at javax.el.BeanELResolver.property(BeanELResolver.java:279)
       at javax.el.BeanELResolver.getValue(BeanELResolver.java:60)
       at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
       at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
       at org.jboss.el.parser.AstPropertySuffix.getValue(AstPropertySuffix.java:53)
       at org.jboss.el.parser.AstValue.getValue(AstValue.java:67)
       at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
       at org.jboss.seam.bpm.SeamExpressionEvaluator$1.evaluate(SeamExpressionEvaluator.java:85)
       at org.jboss.seam.bpm.SeamExpressionEvaluator.evaluate(SeamExpressionEvaluator.java:36)
       at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:39)
       ... 59 more
      
      


      I see that in the dvd example app the action methods are themselves ocurring in a try catch block
      eg.


       public String saveUser() {
       if (!isValidNamePassword()) {
       facesMessages.add("User name #{customer.userName} is not unique");
       return null;
       }
      
       try {
       em.persist(customer);
       sessionContext.set("currentUser", customer);
       Actor.instance().setId(customer.getUserName());
      
       identity.setUsername(customer.getUserName());
       identity.setPassword(customer.getPassword());
       identity.login();
      
       facesMessages.addFromResourceBundle("createCustomerSuccess");
       return "success";
       } catch (InvalidStateException e) {
       InvalidValue[] vals = e.getInvalidValues();
       for (InvalidValue val: vals) {
       facesMessages.add(val);
       }
      
       return null;
       } catch (RuntimeException e) {
       ctx.setRollbackOnly();
      
       facesMessages.addFromResourceBundle("createCustomerError");
      
       return null;
       }
       }
      


      Is this the preferred way?

      Any pointers appreciated.

      I am using seam-2.0.0.GA and jboss 4.2.2.GA

      Thanks
      Pieter