Ashish T [https://community.jboss.org/people/ashpcs] created the discussion "Process having script and deployed through Guvnor is not visible in JBPM console" To view the discussion, visit: https://community.jboss.org/message/829715#829715 -------------------------------------------------------------- I am using JBPM 5.3 and have configured  JBPM 5.4, JBPM console, Human task and JBPM guvnor to run on tomcat 7. I was getting permgen space error so I have  installed Guvnor in one tomcat and everything else in another tomcat instance. When I create JBPM process in Guvnor and having human task it is visible in JBPM console and I can start the task. But If I start another process having only script task is is resulting in below error when I click the process in JBPM console.  Is there any specific reason? The error I am getting is as below.   Let me know If any otehr details needs to be rpovded org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException           org.jboss.resteasy.core.SynchronousDispatcher.unwrapException(SynchronousDispatcher.java:345)           org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:321)           org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214)           org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190)           org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:534)           org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496)           org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119)           org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)           org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)           org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)           javax.servlet.http.HttpServlet.service(HttpServlet.java:722)           org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59) root cause     java.lang.NullPointerException           java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:89)           org.jbpm.persistence.processinstance.ProcessInstanceInfo.getProcessInstance(ProcessInstanceInfo.java:132)           org.jbpm.persistence.processinstance.JPAProcessInstanceManager.getProcessInstance(JPAProcessInstanceManager.java:83)           org.jbpm.process.instance.ProcessRuntimeImpl.getProcessInstance(ProcessRuntimeImpl.java:204)           org.drools.common.AbstractWorkingMemory.getProcessInstance(AbstractWorkingMemory.java:1100)           org.drools.impl.StatefulKnowledgeSessionImpl.getProcessInstance(StatefulKnowledgeSessionImpl.java:297)           org.drools.command.runtime.process.GetProcessInstanceCommand.execute(GetProcessInstanceCommand.java:48)           org.drools.command.runtime.process.GetProcessInstanceCommand.execute(GetProcessInstanceCommand.java:25)           org.drools.command.impl.DefaultCommandService.execute(DefaultCommandService.java:36)           org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:367)           org.drools.command.impl.CommandBasedStatefulKnowledgeSession.getProcessInstance(CommandBasedStatefulKnowledgeSession.java:125)           org.jbpm.integration.console.CommandDelegate.getActiveNodeInstances(CommandDelegate.java:211)           org.jbpm.integration.console.ProcessManagement.getProcessInstances(ProcessManagement.java:75)           org.jboss.bpm.console.server.ProcessMgmtFacade.getInstancesJSON(ProcessMgmtFacade.java:192)           sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)           sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)           sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)           java.lang.reflect.Method.invoke(Method.java:597)   -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/829715#829715] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]