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jbpm5.3 error with deployed process accessed from jbpm-console
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created by <a href="https://community.jboss.org/people/nbd">nbd</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/750683#750683">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I have a demo installation of jbpm 5.3 and use the default embadded h2 database.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I a created a simple process that includes only one node - domain specific custom node that only prints to console. The whole process works fine under eclipse.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm trying to access the process from jbpm console, so I modified <a class="jive-link-anchor-small"><span class="java_type" style="color: #000000;">CustomWorkItemHandlers</span><span class="java_separator" style="color: #000000;">.</span><span class="java_plain" style="color: #000000;">conf</span></a> in the jbpm-gwt-console-server.war, to relate my custom node</p><p>to appropriate handler and included the handler in the jbpm-gwt-console-server.war classpath and it seems the handler class is visible because I'm not getting </p><p>classNotFoundException (conserning my handler class) in the server log any more. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I included my bpmn so it's visible under jbpm-console.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Now, when I log in jbpm-console I can see my process in the processes list, along with the demo Evaluation process. However when I clik on my process I'm getting:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/gwt-console-server].[Resteasy]] (http-localhost-127.0.0.1-8080-5) Servlet.service() for servlet Resteasy threw exception: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.unwrapException(SynchronousDispatcher.java:345) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:321) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:534) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]</p><p>          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59) [classes:]</p><p>          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:139) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]</p><p>          at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:480) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.jboss.as.web.NamingValve.invoke(NamingValve.java:57) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]</p><p>          at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:154) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:667) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) [jbossweb-7.0.1.Final.jar:7.0.2.Final]</p><p>          at java.lang.Thread.run(Thread.java:619) [:1.6.0_11]</p><p>Caused by: java.lang.NullPointerException</p><p>          at java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:89) [:1.6.0_11]</p><p>          at org.jbpm.persistence.processinstance.ProcessInstanceInfo.getProcessInstance(ProcessInstanceInfo.java:132) [jbpm-persistence-jpa-5.3.0.Final.jar:]</p><p>          at org.jbpm.persistence.processinstance.JPAProcessInstanceManager.getProcessInstance(JPAProcessInstanceManager.java:83) [jbpm-persistence-jpa-5.3.0.Final.jar:]</p><p>          at org.jbpm.process.instance.ProcessRuntimeImpl.getProcessInstance(ProcessRuntimeImpl.java:204) [jbpm-flow-5.3.0.Final.jar:]</p><p>          at org.drools.common.AbstractWorkingMemory.getProcessInstance(AbstractWorkingMemory.java:1100) [drools-core-5.4.0.Final.jar:]</p><p>          at org.drools.impl.StatefulKnowledgeSessionImpl.getProcessInstance(StatefulKnowledgeSessionImpl.java:297) [drools-core-5.4.0.Final.jar:]</p><p>          at org.drools.command.runtime.process.GetProcessInstanceCommand.execute(GetProcessInstanceCommand.java:48) [drools-core-5.4.0.Final.jar:]</p><p>          at org.drools.command.runtime.process.GetProcessInstanceCommand.execute(GetProcessInstanceCommand.java:25) [drools-core-5.4.0.Final.jar:]</p><p>          at org.drools.command.impl.DefaultCommandService.execute(DefaultCommandService.java:36) [drools-core-5.4.0.Final.jar:]</p><p>          at org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:367) [drools-persistence-jpa-5.4.0.Final.jar:]</p><p>          at org.drools.command.impl.CommandBasedStatefulKnowledgeSession.getProcessInstance(CommandBasedStatefulKnowledgeSession.java:125) [drools-core-5.4.0.Final.jar:]</p><p>          at org.jbpm.integration.console.CommandDelegate.getActiveNodeInstances(CommandDelegate.java:211) [jbpm-gwt-core-5.3.0.Final.jar:]</p><p>          at org.jbpm.integration.console.ProcessManagement.getProcessInstances(ProcessManagement.java:75) [jbpm-gwt-core-5.3.0.Final.jar:]</p><p>          at org.jboss.bpm.console.server.ProcessMgmtFacade.getInstancesJSON(ProcessMgmtFacade.java:192) [classes:]</p><p>          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_11]</p><p>          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_11]</p><p>          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_11]</p><p>          at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_11]</p><p>          at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:140) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:255) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:220) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:209) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:519) [resteasy-jaxrs-2.2.1.GA.jar:]</p><p>          ... 24 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>There is nothing more in the server log. How can I fix it to be able to start my process from the console?</p></div>
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