3 Replies Latest reply on Nov 22, 2005 7:14 PM by Julian Klein

    Can't Deploy Custom Classes

    Julian Klein Newbie

      I have searched through the forum and understand the issues with the classloader, but I still can't get my custom classes to load regardless which classloader they reside in. I have tried the following:

      1) I put the java classes in the WEB-INF/lib directory as a jar where I have the jbpm 3.0 jar deployed

      2) I put the java classes in the WEB-INF/classes directory

      3) I placed the classes in the par before deployment (both in the root directory of the par and a subfolder named classes)


      Unfortunately none of these have worked. The files were always nested in the proper folder hierarchy to represent the packages. Is there somewhere in the documentation that describes the proper deployment technique? Here is the error I continue to get:

      2005-11-21 19:16:05,291 [http-8081-Processor24] DEBUG org.jbpm.graph.def.GraphElement.executeActions at line 185 - executing action 'action[Review Action]'
      2005-11-21 19:16:05,341 [http-8081-Processor24] ERROR org.jbpm.graph.def.GraphElement.executeActions at line 189 - action threw exception: couldn't get value for file 'classes/com/tchs/workflow/action/ReviewAction.class'
      java.lang.RuntimeException: couldn't get value for file 'classes/com/tchs/workflow/action/ReviewAction.class'
       at org.jbpm.file.def.FileDefinition.getBytes(FileDefinition.java:160)
       at org.jbpm.instantiation.ProcessClassLoader.findClass(ProcessClassLoader.java:34)
       at java.lang.ClassLoader.loadClass(Unknown Source)
       at java.lang.ClassLoader.loadClass(Unknown Source)
       at org.jbpm.instantiation.Delegation.instantiate(Delegation.java:105)
       at org.jbpm.instantiation.Delegation.getInstance(Delegation.java:90)
       at org.jbpm.graph.def.Action.execute(Action.java:78)
       at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:186)
       at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:149)
       at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:133)
       at org.jbpm.graph.def.Node.enter(Node.java:274)
       at org.jbpm.graph.def.Transition.take(Transition.java:92)
       at org.jbpm.graph.def.Node.leave(Node.java:349)
       at org.jbpm.graph.node.StartState.leave(StartState.java:73)
       at org.jbpm.graph.exe.Token.signal(Token.java:127)
       at org.jbpm.graph.exe.Token.signal(Token.java:92)
       at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:341)
       at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:272)
       at org.springframework.workflow.jbpm.JbpmTemplate$18.doInJbpm(JbpmTemplate.java:339)
       at org.springframework.workflow.jbpm.JbpmTemplate.execute(JbpmTemplate.java:357)
       at org.springframework.workflow.jbpm.JbpmTemplate.signalTasks(JbpmTemplate.java:327)
       at com.mycom.web.controller.workflow.WorkflowController.signalTaskInstances(WorkflowController.java:246)
       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.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:351)
       at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:305)
       at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:128)
       at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44)
       at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:684)
       at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:625)
       at org.springframework.web.servlet.FrameworkServlet.serviceWrapper(FrameworkServlet.java:386)
       at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:355)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at com.ethidium.commons.servlet.filter.FirewallFilter.doFilter(FirewallFilter.java:180)
       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.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:407)
       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:856)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
       at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
       at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
       at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
       at java.lang.Thread.run(Unknown Source)
      Caused by: java.lang.RuntimeException: file 'classes/com/tchs/workflow/action/ReviewAction.class' not found in db
       at org.jbpm.file.def.FileDefinition.getByteArray(FileDefinition.java:184)
       at org.jbpm.file.def.FileDefinition.getBytesFromDb(FileDefinition.java:176)
       at org.jbpm.file.def.FileDefinition.getBytes(FileDefinition.java:157)
       ... 53 more
      


      I am using Tomcat 5.5

      Thanks,
      Julian