JBPM6: Singleton not set for ModuleClassLoader for Module Exception occurs when a process started from the jsp page
I get the following error when I try to start the process from the JSP page.
For the first time, I start the jboss and start the process , this error does not occur. Therefore, I have to restart each time to start a process or to a complete a task which is not practical. I deployed the evaluation as Per Request deployment. Still i get this error.
It might be a library issue. Please help me to find this. Highly appreciate even a clue to proceed.
I am struggling this for last few weeks.
org.jboss.resteasy.spi.ReaderException: java.lang.IllegalStateException: JBAS016071: Singleton not set for ModuleClassLoader for Module "deployment.Evaluation.war:main" from Service Module Loader. This means that you are trying to access a weld deployment with a Thread Context ClassLoader that is not associated with the deployment.
19:36:31,447 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jboss.resteasy.client.core.BaseClientResponse.readFrom(BaseClientResponse.java:469)
19:36:31,450 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jboss.resteasy.client.core.BaseClientResponse.getEntity(BaseClientResponse.java:377)
19:36:31,453 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jboss.resteasy.client.core.BaseClientResponse.getEntity(BaseClientResponse.java:350)
19:36:31,456 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jboss.resteasy.client.core.BaseClientResponse.getEntity(BaseClientResponse.java:344)
19:36:31,459 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.kie.services.client.api.command.AbstractRemoteCommandObject.executeRestCommand(AbstractRemoteCommandObject.java:323)
19:36:31,462 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.kie.services.client.api.command.AbstractRemoteCommandObject.execute(AbstractRemoteCommandObject.java:110)
19:36:31,466 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jbpm.services.task.impl.command.CommandBasedTaskService.getTasksAssignedAsPotentialOwner(CommandBasedTaskService.java:185)
19:36:31,469 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at com.sample.DemoRun.submitProcess(DemoRun.java:53)
19:36:31,471 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at com.sample.ActionServlet.doGet(ActionServlet.java:34)
19:36:31,473 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
19:36:31,475 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
Caused by: java.lang.IllegalStateException: JBAS016071: Singleton not set for ModuleClassLoader for Module "deployment.Evaluation.war:main" from Service Module Loader. This means that you are trying to access a weld deployment with a Thread Context ClassLoader that is not associated with the deployment.
19:36:31,521 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jboss.as.weld.services.ModuleGroupSingletonProvider$TCCLSingleton.get(ModuleGroupSingletonProvider.java:75)
19:36:31,524 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jboss.weld.Container.instance(Container.java:54)
19:36:31,526 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:67)
19:36:31,529 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:79)
19:36:31,531 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.kie.services.remote.rest.JaxbContextResolver$Proxy$_$$WeldClientProxy.getContext(JaxbContextResolver$Proxy$$$_WeldClientProxy.java)
19:36:31,535 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at org.jboss.resteasy.plugins.providers.jaxb.AbstractJAXBContextFinder.findProvidedJAXBContext(AbstractJAXBContextFinder.java:76)
The logic is written as follows.
String deploymentId = "org.jbpm:Evaluation:1.0";
URL baseUrl = new URL("http://localhost:8080/jbpm-console");
String username = "krisv";
String password = "krisv";
RemoteRestRuntimeFactory rFactory = new RemoteRestRuntimeFactory( deploymentId, baseUrl, username, password);
RemoteRuntimeEngine engine = rFactory.newRuntimeEngine();
KieSession ksession = engine.getKieSession();
TaskService taskService = engine.getTaskService();
Map<String, Object> params = new HashMap<String, Object>();
params.put("employee", "krisv");
params.put("reason", "Yearly performance evaluation");
ProcessInstance pInstance = ksession.startProcess("evaluation", params);
long parentId = pInstance.getId();
