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jBPM Designer won't save when validation fails
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created by <a href="https://community.jboss.org/people/hbpost">Herman Post</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/779224#779224">View the full discussion</a>
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<div class="jive-rendered-content"><p>I was using the 2.4-Final release of the jBPM Designer, doing high level design and saving my work periodically, and all of a suddent a message appears saying "Unable to perform user action due to errors.  Validate your process before saving...".  Then it locked up and I lost my work.   Does a process need to pass validation to save?  This seems unreasonable if I'm just trying to lay out high level design.  Here is the stack trace I got when it locked up:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>16:23:38,417 ERROR [org.jbpm.designer.web.profile.impl.JbpmProfileImpl] (http-localhost-127.0.0.1-8080-26) null: java.lang.NullPointerException</p><p>          at org.jbpm.designer.bpmn2.impl.Bpmn2JsonMarshaller.marshallSequenceFlow(Bpmn2JsonMarshaller.java:2469) [classes:]</p><p>          at org.jbpm.designer.bpmn2.impl.Bpmn2JsonMarshaller.marshallFlowElement(Bpmn2JsonMarshaller.java:868) [classes:]</p><p>          at org.jbpm.designer.bpmn2.impl.Bpmn2JsonMarshaller.marshallProcess(Bpmn2JsonMarshaller.java:480) [classes:]</p><p>          at org.jbpm.designer.bpmn2.impl.Bpmn2JsonMarshaller.marshallDefinitions(Bpmn2JsonMarshaller.java:372) [classes:]</p><p>          at org.jbpm.designer.bpmn2.impl.Bpmn2JsonMarshaller.marshall(Bpmn2JsonMarshaller.java:208) [classes:]</p><p>          at org.jbpm.designer.web.profile.impl.JbpmProfileImpl$2.parseModel(JbpmProfileImpl.java:285) [classes:]</p><p>          at org.jbpm.designer.web.server.UUIDBasedRepositoryServlet.doPost(UUIDBasedRepositoryServlet.java:148) [classes:]</p><p>          at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]</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-7.0.13.Final.jar:]</p><p>          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.jbpm.designer.web.filter.impl.PluggableFilter.doFilter(PluggableFilter.java:70) [classes:]</p><p>          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]</p><p>          at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]</p><p>          at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]</p><p>          at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_09]</p></div>
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