There is a task in the DB. The following was at the end of the log file after I logged in as mary:
10:59:22,562 ERROR [stderr] (Thread-16) javax.persistence.NoResultException: No entity found for query
10:59:22,562 ERROR [stderr] (Thread-16) at org.hibernate.ejb.QueryImpl.getSingleResult(QueryImpl.java:104)
10:59:22,562 ERROR [stderr] (Thread-16) at org.jbpm.task.service.TaskServiceSession.getTaskByWorkItemId(TaskServiceSession.java:644)
10:59:22,562 ERROR [stderr] (Thread-16) at org.jbpm.task.service.TaskServerHandler.messageReceived(TaskServerHandler.java:258)
10:59:22,562 ERROR [stderr] (Thread-16) at org.jbpm.task.service.hornetq.HornetQTaskServerHandler.messageReceived(HornetQTaskServerHandler.java:44)
10:59:22,562 ERROR [stderr] (Thread-16) at org.jbpm.task.service.hornetq.BaseHornetQTaskServer.run(BaseHornetQTaskServer.java:85)
10:59:22,562 ERROR [stderr] (Thread-16) at java.lang.Thread.run(Thread.java:662)
10:59:22,609 ERROR [stderr] (Thread-36) Exception in thread "Thread-36" java.lang.RuntimeException: Client Exception with class class org.jbpm.task.service.hornetq.HornetQTaskClientConnector$1 using port 5445
10:59:22,625 ERROR [stderr] (Thread-36) at org.jbpm.task.service.hornetq.HornetQTaskClientConnector$1.run(HornetQTaskClientConnector.java:134)
10:59:22,625 ERROR [stderr] (Thread-36) at java.lang.Thread.run(Thread.java:662)
10:59:22,625 ERROR [stderr] (Thread-36) Caused by: java.lang.ClassCastException: org.jbpm.process.workitem.wsht.CommandBasedWSHumanTaskHandler$AbortTaskResponseHandler cannot be cast to org.jbpm.task.service.TaskClientHandler$TaskSummaryResponseHandler
10:59:22,625 ERROR [stderr] (Thread-36) at org.jbpm.task.service.TaskClientHandler.messageReceived(TaskClientHandler.java:171)
10:59:22,625 ERROR [stderr] (Thread-36) at org.jbpm.task.service.hornetq.HornetQTaskClientHandler.messageReceived(HornetQTaskClientHandler.java:56)
10:59:22,625 ERROR [stderr] (Thread-36) at org.jbpm.task.service.hornetq.HornetQTaskClientConnector$1.run(HornetQTaskClientConnector.java:120)
10:59:22,625 ERROR [stderr] (Thread-36) ... 1 more
10:59:42,015 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/gwt-console-server].[Resteasy]] (http-localhost-127.0.0.1-8080-3) Servlet.service() for servlet Resteasy threw exception: org.jboss.resteasy.spi.UnhandledException: javax.persistence.NonUniqueResultException: result returns more than one elements
at org.jboss.resteasy.core.SynchronousDispatcher.unwrapException(SynchronousDispatcher.java:345) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:321) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:534) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.2.1.GA.jar:]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59) [classes:]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:139) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:480) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.jboss.as.web.NamingValve.invoke(NamingValve.java:57) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:154) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:667) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at java.lang.Thread.run(Thread.java:662) [:1.6.0_24]
Caused by: javax.persistence.NonUniqueResultException: result returns more than one elements
at org.hibernate.ejb.QueryImpl.getSingleResult(QueryImpl.java:109) [hibernate-entitymanager-3.4.0.GA.jar:]
at org.jbpm.process.audit.JPAProcessInstanceDbLog.findProcessInstance(JPAProcessInstanceDbLog.java:124) [jbpm-bam-5.3.0.Final.jar:]
at org.jbpm.integration.console.CommandDelegate.startProcess(CommandDelegate.java:121) [jbpm-gwt-core-5.3.0.Final.jar:]
at org.jbpm.integration.console.ProcessManagement.newInstance(ProcessManagement.java:88) [jbpm-gwt-core-5.3.0.Final.jar:]
at org.jboss.bpm.console.server.FormProcessingFacade.startProcessWithUI(FormProcessingFacade.java:197) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_24]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_24]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_24]
at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_24]
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:140) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:255) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:220) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:209) [resteasy-jaxrs-2.2.1.GA.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:519) [resteasy-jaxrs-2.2.1.GA.jar:]
... 24 more