报错如下：

java.lang.NullPointerException  at com.fr.web.core.FormSessionIDInfor.durableEntity(Unknown Source)  at com.fr.intelli.metrics.MonitorInterceptor.intercept(Unknown Source)  at com.fr.web.core.FormSessionIDInfor.execute(Unknown Source)  at com.fr.web.core.FormSessionIDInfor.execute(Unknown Source)  at com.fr.web.core.B.uA.B(Unknown Source)  at com.fr.web.core.B.uA.actionCMD(Unknown Source)  at com.fr.web.core.WebActionsDispatcher.dealForActionCMD(Unknown Source)  at com.fr.web.core.WebActionsDispatcher.dealForActionDefaultCmd(Unknown Source)  at com.fr.web.core.WebActionsDispatcher.dealForActionCMD(Unknown Source)  at com.fr.web.core.B.f.process(Unknown Source)  at com.fr.web.core.ReportDispatcher.dealWithOp(Unknown Source)  at com.fr.web.core.ReportDispatcher.dealWeblet(Unknown Source)  at com.fr.web.core.ReportDispatcher.dealWithRequest(Unknown Source)  at com.fr.web.controller.BaseRequestService.preview(Unknown Source)  at com.fr.web.controller.FormRequestService.preview(Unknown Source)  at sun.reflect.GeneratedMethodAccessor84.invoke(Unknown Source)  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)  at java.lang.reflect.Method.invoke(Method.java:498)  at com.fr.third.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)  at com.fr.third.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)  at com.fr.third.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)  at com.fr.third.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:747)  at com.fr.third.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:676)  at com.fr.third.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)  at com.fr.third.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938)  at com.fr.third.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)  at com.fr.third.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)  at com.fr.third.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)  at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)  at com.fr.third.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)  at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)  at com.fr.third.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)  at com.fr.third.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)  at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)  at com.fr.decision.base.DecisionServletInitializer$4.doFilter(Unknown Source)  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)  at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)  at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)  at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)  at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)  at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)  at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)  at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)  at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)  at java.lang.Thread.run(Thread.java:748)