2 Replies Latest reply on Jul 15, 2014 2:37 AM by Santhosh Bhat

    Creating "service task" using process API

    Santhosh Bhat Newbie

      I have a requirement to create the service task (a task which is associated with  a service class) using Process API (Chapter 6. Processes) . I took the example mentioned in the Processes chapter and started exploring options. Here I found that, an action node can be created with a class, which should implement org.jbpm.process.instance.impl.Action (I thought this will solve my problem). But when I created such an action node, by supplying an implementor of org.jbpm.process.instance.impl.Action, I got the following error

       

      java.lang.ClassCastException: org.jbpm.workflow.core.DroolsAction cannot be cast to org.jbpm.workflow.core.impl.DroolsConsequenceAction

        at org.jbpm.bpmn2.xml.XmlBPMNProcessDumper.visitEscalations(XmlBPMNProcessDumper.java:505)

        at org.jbpm.bpmn2.xml.XmlBPMNProcessDumper.visitProcess(XmlBPMNProcessDumper.java:143)

        at org.jbpm.bpmn2.xml.XmlBPMNProcessDumper.dump(XmlBPMNProcessDumper.java:98)

        at org.jbpm.bpmn2.xml.XmlBPMNProcessDumper.dump(XmlBPMNProcessDumper.java:89)

         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:606)

        at junit.framework.TestCase.runTest(TestCase.java:176)

        at junit.framework.TestCase.runBare(TestCase.java:141)

        at junit.framework.TestResult$1.protect(TestResult.java:122)

        at junit.framework.TestResult.runProtected(TestResult.java:142)

        at junit.framework.TestResult.run(TestResult.java:125)

        at junit.framework.TestCase.run(TestCase.java:129)

        at junit.framework.TestSuite.runTest(TestSuite.java:255)

        at junit.framework.TestSuite.run(TestSuite.java:250)

        at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)

        at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)

        at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)

        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)

        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)

        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

       

      Doing a google search yielded this result ([JBPM-4378] ClassCastException when dumping process with an action node - JBoss Issue Tracker) which seems to be an Open bug. My question is, is there any alternative? or workaround?

       

      I am using Jbpm-6.0.0-Final. Please help me with an advice. Thanks for your time on this post.