在流程中，报空指针错误

如上图中的 流程，在流程运转到红色框所标注的节点时，点击待办中的列表，出现null

后台报如下错误：
09:12:30,095  INFO AbstractDocStaticTblDAO:1069 - MS SQL Server: SELECT COUNT(*)  FROM DBO.TLK_UNITNAME d WHERE d.ISTMP=0 AND d.DOMAINID='11e2-1110-88758c73-a222-f3dc5239ec80
09:12:30,176  INFO AbstractFlowStateRTDAO:106 - MS SQL SERVER: SELECT * FROM DBO.T_FLOWSTATERT WHERE ID=?
09:12:30,179  INFO AbstractActorRTDAO:136 - MS SQL SERVER: SELECT * FROM DBO.T_ACTORRT WHERE FLOWSTATERT_ID=? ORDER BY ID
09:12:30,182  INFO AbstractCirculatorDAO:434 - MS SQL SERVER: SELECT * FROM DBO.T_CIRCULATOR c WHERE c.DOC_ID =? AND c.FLOWSTATERT_ID =? AND c.USERID =? AND c.ISREAD =?
09:12:30,185  INFO AbstractFlowStateRTDAO:415 - MS SQL SERVER: SELECT COUNT(0) FROM DBO.T_FLOWSTATERT vo WHERE vo.DOCID='11e4-07ce-9dffc5ae-bd96-8d82c5cc2bfb'
09:12:30,211  INFO AbstractNodeRTDAO:294 - MS SQL SERVER: SELECT * FROM DBO.T_NODERT WHERE FLOWSTATERT_ID=?
09:12:30,215  INFO AbstractActorRTDAO:136 - MS SQL SERVER: SELECT * FROM DBO.T_ACTORRT WHERE NODERT_ID=? ORDER BY ID
java.lang.NullPointerException
        at cn.myapps.core.workflow.engine.StateMachineUtil.getPrincipalMap(StateMachineUtil.java:234)
        at cn.myapps.core.workflow.engine.StateMachineUtil.getPrincipalList(StateMachineUtil.java:595)
        at cn.myapps.core.workflow.engine.StateMachineHelper.toFlowHtmlText(StateMachineHelper.java:1132)
        at org.apache.jsp.portal.default_.dynaform.document.content_jsp._jspService(content_jsp.java:1000)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
        at com.opensymphony.webwork.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:114)
        at cn.myapps.base.web.ServletResult.OBPMServletDispatcherResult.doExecute(OBPMServletDispatcherResult.java:32)
        at com.opensymphony.webwork.dispatcher.WebWorkResultSupport.execute(WebWorkResultSupport.java:101)
        at com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:312)
        at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:207)
        at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)
        at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:189)
        at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:113)
        at com.opensymphony.webwork.dispatcher.DispatcherUtils.serviceAction(DispatcherUtils.java:233)
        at com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:198)
        at cn.myapps.base.web.filter.OBPMFilterDispatcher.doFilter(OBPMFilterDispatcher.java:43)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.opensymphony.webwork.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:78)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at cn.myapps.base.web.filter.AjaxMultiLanguageFilter.doFilter(AjaxMultiLanguageFilter.java:43)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at cn.myapps.km.base.filter.KMPersistenceFilter.doFilter(KMPersistenceFilter.java:20)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at cn.myapps.base.web.filter.PersistenceFilter.doFilter(PersistenceFilter.java:33)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at cn.myapps.base.web.filter.SecurityFilter.doFilter(SecurityFilter.java:127)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jasig.cas.client.util.AssertionThreadLocalFilter.doFilter(AssertionThreadLocalFilter.java:54)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jasig.cas.client.util.HttpServletRequestWrapperFilter.doFilter(HttpServletRequestWrapperFilter.java:75)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:197)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at cn.myapps.core.sso.cas.filter.OBPMAuthenticationFilter.doFilter(OBPMAuthenticationFilter.java:87)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:76)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at cn.myapps.base.web.filter.EncodingFilter.doFilter(EncodingFilter.java:28)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:879)
        at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:617)
        at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2270)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
09:12:57,310  INFO pushlet:79 - SessionManager: Thu Jul 10 09:12:57 CST 2014 AgingTimerTask: Session expired: 192.168.2.87[jycojohyzy]

回复 1# 西北有色


    此问题已经得到了解决，谢谢

Q沟通,已解决! 在流程下一个节点设置错误!