0 Replies Latest reply on Sep 28, 2010 12:09 PM by Adel Haider

    jBPM console throws com.google.gwt.http.client.RequestException

    Adel Haider Newbie

      === Environment ==============================
      - jBPM Version: 4.4
      - Database: inbuilt hsqldb
      - JDK: 1.6
      - Container: jBoss
      - Configuration: jbpm.cfg.xml only importing files from the jbpm.jar lib itself
      - Libraries: using the exact versions of the libs from inside the jbpm distribution

       

      === Process ==================================
      <process name="sidns" xmlns="http://jbpm.org/4.4/jpdl">
          <variable init-expr="#{variavel}" name="content" type="string"/>
         
          <!--<assign name='assign1' from-expr='#{variavel}' to-expr='#{content}'>
              <transition name='to start' to='start1'/>
          </assign>-->
         
          <!--<assign name='assign1' to-var='content'>
              <from><string value="java2"/></from>
              <transition name='to start' to='start1'/>
          </assign>-->
         
          <start g="9,75,48,48" name="start1">
              <transition g="-22,-20" name="to decision" to="decision1"/>
          </start>
         
          <end g="406,80,48,48" name="end1"/>
         
          <java class="pt.fccn.sidns.SIDNS" g="234,22,92,52" method="writeToFile" name="java1">
              <arg>
                  <string value="file1.txt"/>
              </arg>
              <transition g="-15,-20" name="to end1" to="end1"/>
          </java>
         
          <java class="pt.fccn.sidns.SIDNS" g="237,144,92,52" method="writeToFile" name="java2">
              <arg>
                  <string value="file2.txt"/>
              </arg>
            <transition g="-83,14" name="to send rectify note" to="send rectify note"/>
          </java>
         
         <decision g="109,77,48,48" name="decision1">
            <transition g="-46,-20" name="to java1" to="java1">
                <condition expr="#{content==&quot;java1&quot;}"/>
               </transition>
            <transition g="-38,3" name="to java2" to="java2">
                <condition expr="#{content==&quot;java2&quot;}"/>
            </transition>
         </decision>
        
         <mail g="379,171,115,45" name="send rectify note">
          <to addresses="name@domain.com"/>
          <!--<cc groups="innerparty" users="bb"/>-->
          <!--<bcc groups="thinkpol"/>-->
          <subject>assunto</subject>
          <text>body</text>
          <!--
          <html><table><tr><td>${newspaper}</td><td>${date}</td>
            <td>reporting bb dayorder doubleplusungood
            refs unpersons rewrite fullwise upsub antefiling</td>
            </tr></table></html>
          <attachments>
            <attachment url='http://www.george-orwell.org/1984/3.html' />
            <attachment resource='org/example/pic.jpg' />
            <attachment file='${user.home}/.face' />
          </attachments>
          -->
          <transition g="-45,-20" name="to end1" to="end1"/><!--language="juel"-->
        </mail>
      </process>

       

      === API ===================================
      Invoking through jBPM console.

       

      === Stacktrace ==============================
      2010-09-28 16:37:10,479 [DEBUG] POST: http://localhost:8080/gwt-console-server/rs/process/definition/sidns-1/new_instance
      2010-09-28 16:37:10,539 [ERROR] <ul><li>URL: 'http://localhost:8080/gwt-console-server/rs/process/definition/sidns-1/new_instance'
      <li>Action: 'org.jboss.bpm.console.client.process.StartNewInstanceAction'
      <li>Exception: 'class com.google.gwt.http.client.RequestException'</ul>

       

      HTTP 500: Unknown error
      com.google.gwt.http.client.RequestException:
      HTTP 500: Unknown error
          at Unknown.zP(Unknown source:0)
          at Unknown.szc(Unknown source:0)
          at Unknown.KO(Unknown source:0)
          at Unknown.pP(Unknown source:0)
          at Unknown.anonymous(Unknown source:0)
          at Unknown.HA(Unknown source:0)
          at Unknown.anonymous(Unknown source:0)
          at Unknown.anonymous(Unknown source:0)

       

      === Debug logs ==============================
      16:37:10,486 INFO  [DefaultCommandService] exception while executing command org.jbpm.pvm.internal.cmd.StartProcessInstanceCmd@167c24a
      javax.el.PropertyNotFoundException: Cannot resolve identifier 'variavel'
          at de.odysseus.el.tree.impl.ast.AstIdentifier.eval(AstIdentifier.java:86)
          at de.odysseus.el.tree.impl.ast.AstEval.eval(AstEval.java:51)
          at de.odysseus.el.tree.impl.ast.AstNode.getValue(AstNode.java:28)
          at de.odysseus.el.TreeValueExpression.getValue(TreeValueExpression.java:122)
          at org.jbpm.pvm.internal.el.UelValueExpression.evaluateInScope(UelValueExpression.java:52)
          at org.jbpm.pvm.internal.model.VariableDefinitionImpl.getInitValue(VariableDefinitionImpl.java:55)
          at org.jbpm.pvm.internal.model.ScopeInstanceImpl.initializeVariables(ScopeInstanceImpl.java:84)
          at org.jbpm.pvm.internal.model.ExecutionImpl.initializeScopes(ExecutionImpl.java:237)
          at org.jbpm.pvm.internal.model.ExecutionImpl.start(ExecutionImpl.java:213)
          at org.jbpm.pvm.internal.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:60)
          at org.jbpm.pvm.internal.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:37)
          at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)
          at org.jbpm.pvm.internal.tx.JtaTransactionInterceptor.executeInNewTx(JtaTransactionInterceptor.java:83)
          at org.jbpm.pvm.internal.tx.JtaTransactionInterceptor.execute(JtaTransactionInterceptor.java:62)
          at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:56)
          at org.jbpm.pvm.internal.tx.JtaRetryInterceptor.executeWithRetry(JtaRetryInterceptor.java:52)
          at org.jbpm.pvm.internal.tx.JtaRetryInterceptor.execute(JtaRetryInterceptor.java:45)
          at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)
          at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)
          at org.jbpm.pvm.internal.svc.SkipInterceptor.execute(SkipInterceptor.java:43)
          at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.startProcessInstanceById(ExecutionServiceImpl.java:51)
          at org.jbpm.integration.console.ProcessManagementImpl.newInstance(ProcessManagementImpl.java:139)
          at org.jboss.bpm.console.server.ProcessMgmtFacade.newInstance(ProcessMgmtFacade.java:204)
          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.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:117)
          at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:260)
          at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:232)
          at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:166)
          at org.jboss.resteasy.core.DispatcherUtilities.getJaxrsResponse(DispatcherUtilities.java:142)
          at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
          at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)
          at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)
          at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
          at org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)
          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:235)
          at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
          at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
          at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
          at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
          at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
          at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
          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:158)
          at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
          at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
          at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
          at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
          at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
          at java.lang.Thread.run(Unknown Source)
      16:37:10,491 ERROR [SynchronousDispatcher] failed to execute

       

      === Problem description =========================
      When invoking any process from the jBPM console, if the process itself throws an exception at runtime (Debug logs), the console displays a window with the Stacktrace showed above (printscreen attached). This occurs regardless of the error that occurred within the process and the process being invoked.

       

      NB: The problem I'm trying to report is NOT the exception described in the Debug log, it's the exception thrown in the console due to the error in the process.

       

      I have been through the jBPM wiki, user forums, etc. but nothing addresses this issue concretely. What is the cause of this exception and how do I fix it?

       

      Kind Regards,

      Adel Haider