[jira] [Closed] (WW-5223) Getting NPE on each request while upgrading from Strutsv2.2.1.1 to Strutsv2.3.37

[Lukasz Lenart (Jira)]

     [ 
https://issues.apache.org/jira/browse/WW-5223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Lukasz Lenart closed WW-5223.
-----------------------------
    Resolution: Not A Problem

Did you read the migration guide [1]? And please ask such question on the User 
Mailing list https://struts.apache.org/mail.html

[1] https://cwiki.apache.org/confluence/display/WW/Struts+2.3+to+2.5+migration


> Getting NPE on each request while upgrading from Strutsv2.2.1.1 to 
> Strutsv2.3.37
> --------------------------------------------------------------------------------
>
>                 Key: WW-5223
>                 URL: https://issues.apache.org/jira/browse/WW-5223
>             Project: Struts 2
>          Issue Type: Bug
>            Reporter: sowjanya
>            Priority: Blocker
>
> We are upgrading from Strutsv2.2.1.1 to Strutsv2.3.37. Added all Struts 
> dependencies but getting NPE in action class.
> We noticed this issue is caused as parameter values are not setting in the 
> setter.
> {code:java}
> [http-0.0.0.0-443-1] ERROR 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor - null
> java.lang.NullPointerException: null
>     at 
> com.XXX.mvc.controller.useraction.discovery.DiscoverNetwork.execute(DiscoverNetwork.java:30)
>  ~[XXX-mvcems.jar:?]
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  ~[?:1.8.0_74]
>     at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74]
>     at ognl.OgnlRuntime.invokeMethodInsideSandbox(OgnlRuntime.java:1245) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:1230) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1958) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68) 
> ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:98)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:90)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:2034) ~[ognl-3.3.3.jar:?]
>     at ognl.ASTMethod.getValueBody(ASTMethod.java:97) ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.getValue(SimpleNode.java:258) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:586) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:550) ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.lambda$callMethod$2(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecuteMethod(OgnlUtil.java:595)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at com.opensymphony.xwork2.ognl.OgnlUtil.callMethod(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:420)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:293)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.RequestMapInterceptor.intercept(RequestMapInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.AuthorizationInterceptor.intercept(AuthorizationInterceptor.java:61)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SingleAuthorizationInterceptor.intercept(SingleAuthorizationInterceptor.java:86)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.JspInterceptor.intercept(JspInterceptor.java:32)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.LocaleInterceptor.intercept(LocaleInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SessionInterceptor.intercept(SessionInterceptor.java:83)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ServiceInterceptor.intercept(ServiceInterceptor.java:116)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ViewInterceptor.intercept(ViewInterceptor.java:28)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:179)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:49)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FetchMetadataInterceptor.intercept(FetchMetadataInterceptor.java:76)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoopInterceptor.intercept(CoopInterceptor.java:57)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoepInterceptor.intercept(CoepInterceptor.java:56)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.doIntercept(ConversionErrorInterceptor.java:143)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:146)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:202)
>  ~[struts2-core-6.0.0.jar:6.0.
> 2022-08-18 13:52:43,606 INFO  [STDOUT] 0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:67)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:133)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:89)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:142)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:161)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:175)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.csp.CspInterceptor.intercept(CspInterceptor.java:44)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:209)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:229)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:196)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.factory.StrutsActionProxy.execute(StrutsActionProxy.java:48)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:637) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:79)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at java.lang.Thread.run(Thread.java:745) ~[?:1.8.0_74]
> 2022-08-18 13:52:43,609 INFO  [STDOUT] 13:52:43.606 [http-0.0.0.0-443-1] 
> ERROR org.apache.struts2.dispatcher.DefaultDispatcherErrorHandler - Exception 
> occurred during processing request: null
> java.lang.NullPointerException: null
>     at 
> com.XXX.mvc.controller.useraction.discovery.DiscoverNetwork.execute(DiscoverNetwork.java:30)
>  ~[XXX-mvcems.jar:?]
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  ~[?:1.8.0_74]
>     at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74]
>     at ognl.OgnlRuntime.invokeMethodInsideSandbox(OgnlRuntime.java:1245) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:1230) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1958) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68) 
> ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:98)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:90)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:2034) ~[ognl-3.3.3.jar:?]
>     at ognl.ASTMethod.getValueBody(ASTMethod.java:97) ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.getValue(SimpleNode.java:258) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:586) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:550) ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.lambda$callMethod$2(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecuteMethod(OgnlUtil.java:595)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at com.opensymphony.xwork2.ognl.OgnlUtil.callMethod(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:420)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:293)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.RequestMapInterceptor.intercept(RequestMapInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.AuthorizationInterceptor.intercept(AuthorizationInterceptor.java:61)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SingleAuthorizationInterceptor.intercept(SingleAuthorizationInterceptor.java:86)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.JspInterceptor.intercept(JspInterceptor.java:32)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.LocaleInterceptor.intercept(LocaleInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SessionInterceptor.intercept(SessionInterceptor.java:83)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ServiceInterceptor.intercept(ServiceInterceptor.java:116)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ViewInterceptor.intercept(ViewInterceptor.java:28)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:179)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:49)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FetchMetadataInterceptor.intercept(FetchMetadataInterceptor.java:76)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoopInterceptor.intercept(CoopInterceptor.java:57)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoepInterceptor.intercept(CoepInterceptor.java:56)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.doIntercept(ConversionErrorInterceptor.java:143)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:146)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersIntercept
> 2022-08-18 13:52:43,610 INFO  [STDOUT] or.java:202) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:67)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:133)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:89)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:142)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:161)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:175)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.csp.CspInterceptor.intercept(CspInterceptor.java:44)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:209)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:229)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:196)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.factory.StrutsActionProxy.execute(StrutsActionProxy.java:48)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:637) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:79)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at java.lang.Thread.run(Thread.java:745) 
> ~[?:1.8.0_74][http-0.0.0.0-443-1] ERROR 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor - null
> java.lang.NullPointerException: null
>     at 
> com.XXX.mvc.controller.useraction.discovery.DiscoverNetwork.execute(DiscoverNetwork.java:30)
>  ~[XXX-mvcems.jar:?]
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  ~[?:1.8.0_74]
>     at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74]
>     at ognl.OgnlRuntime.invokeMethodInsideSandbox(OgnlRuntime.java:1245) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:1230) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1958) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68) 
> ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:98)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:90)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:2034) ~[ognl-3.3.3.jar:?]
>     at ognl.ASTMethod.getValueBody(ASTMethod.java:97) ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.getValue(SimpleNode.java:258) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:586) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:550) ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.lambda$callMethod$2(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecuteMethod(OgnlUtil.java:595)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at com.opensymphony.xwork2.ognl.OgnlUtil.callMethod(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:420)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:293)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.RequestMapInterceptor.intercept(RequestMapInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.AuthorizationInterceptor.intercept(AuthorizationInterceptor.java:61)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SingleAuthorizationInterceptor.intercept(SingleAuthorizationInterceptor.java:86)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.JspInterceptor.intercept(JspInterceptor.java:32)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.LocaleInterceptor.intercept(LocaleInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SessionInterceptor.intercept(SessionInterceptor.java:83)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ServiceInterceptor.intercept(ServiceInterceptor.java:116)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ViewInterceptor.intercept(ViewInterceptor.java:28)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:179)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:49)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FetchMetadataInterceptor.intercept(FetchMetadataInterceptor.java:76)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoopInterceptor.intercept(CoopInterceptor.java:57)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoepInterceptor.intercept(CoepInterceptor.java:56)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.doIntercept(ConversionErrorInterceptor.java:143)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:146)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:202)
>  ~[struts2-core-6.0.0.jar:6.0.
> 2022-08-18 13:52:43,606 INFO  [STDOUT] 0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:67)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:133)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:89)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:142)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:161)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:175)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.csp.CspInterceptor.intercept(CspInterceptor.java:44)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:209)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:229)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:196)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.factory.StrutsActionProxy.execute(StrutsActionProxy.java:48)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:637) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:79)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at java.lang.Thread.run(Thread.java:745) ~[?:1.8.0_74]
> 2022-08-18 13:52:43,609 INFO  [STDOUT] 13:52:43.606 [http-0.0.0.0-443-1] 
> ERROR org.apache.struts2.dispatcher.DefaultDispatcherErrorHandler - Exception 
> occurred during processing request: null
> java.lang.NullPointerException: null
>     at 
> com.XXX.mvc.controller.useraction.discovery.DiscoverNetwork.execute(DiscoverNetwork.java:30)
>  ~[XXX-mvcems.jar:?]
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  ~[?:1.8.0_74]
>     at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74]
>     at ognl.OgnlRuntime.invokeMethodInsideSandbox(OgnlRuntime.java:1245) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:1230) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1958) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68) 
> ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:98)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:90)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:2034) ~[ognl-3.3.3.jar:?]
>     at ognl.ASTMethod.getValueBody(ASTMethod.java:97) ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.getValue(SimpleNode.java:258) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:586) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:550) ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.lambda$callMethod$2(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecuteMethod(OgnlUtil.java:595)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at com.opensymphony.xwork2.ognl.OgnlUtil.callMethod(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:420)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:293)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.RequestMapInterceptor.intercept(RequestMapInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.AuthorizationInterceptor.intercept(AuthorizationInterceptor.java:61)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SingleAuthorizationInterceptor.intercept(SingleAuthorizationInterceptor.java:86)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.JspInterceptor.intercept(JspInterceptor.java:32)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.LocaleInterceptor.intercept(LocaleInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SessionInterceptor.intercept(SessionInterceptor.java:83)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ServiceInterceptor.intercept(ServiceInterceptor.java:116)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ViewInterceptor.intercept(ViewInterceptor.java:28)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:179)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:49)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FetchMetadataInterceptor.intercept(FetchMetadataInterceptor.java:76)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoopInterceptor.intercept(CoopInterceptor.java:57)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoepInterceptor.intercept(CoepInterceptor.java:56)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.doIntercept(ConversionErrorInterceptor.java:143)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:146)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersIntercept
> 2022-08-18 13:52:43,610 INFO  [STDOUT] or.java:202) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:67)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:133)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:89)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:142)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:161)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:175)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.csp.CspInterceptor.intercept(CspInterceptor.java:44)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:209)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:229)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:196)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.factory.StrutsActionProxy.execute(StrutsActionProxy.java:48)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:637) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:79)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at java.lang.Thread.run(Thread.java:745) 
> ~[?:1.8.0_74][http-0.0.0.0-443-1] ERROR 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor - null
> java.lang.NullPointerException: null
>     at 
> com.XXX.mvc.controller.useraction.discovery.DiscoverNetwork.execute(DiscoverNetwork.java:30)
>  ~[XXX-mvcems.jar:?]
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  ~[?:1.8.0_74]
>     at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74]
>     at ognl.OgnlRuntime.invokeMethodInsideSandbox(OgnlRuntime.java:1245) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:1230) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1958) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68) 
> ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:98)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:90)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:2034) ~[ognl-3.3.3.jar:?]
>     at ognl.ASTMethod.getValueBody(ASTMethod.java:97) ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.getValue(SimpleNode.java:258) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:586) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:550) ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.lambda$callMethod$2(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecuteMethod(OgnlUtil.java:595)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at com.opensymphony.xwork2.ognl.OgnlUtil.callMethod(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:420)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:293)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.RequestMapInterceptor.intercept(RequestMapInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.AuthorizationInterceptor.intercept(AuthorizationInterceptor.java:61)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SingleAuthorizationInterceptor.intercept(SingleAuthorizationInterceptor.java:86)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.JspInterceptor.intercept(JspInterceptor.java:32)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.LocaleInterceptor.intercept(LocaleInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SessionInterceptor.intercept(SessionInterceptor.java:83)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ServiceInterceptor.intercept(ServiceInterceptor.java:116)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ViewInterceptor.intercept(ViewInterceptor.java:28)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:179)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:49)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FetchMetadataInterceptor.intercept(FetchMetadataInterceptor.java:76)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoopInterceptor.intercept(CoopInterceptor.java:57)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoepInterceptor.intercept(CoepInterceptor.java:56)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.doIntercept(ConversionErrorInterceptor.java:143)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:146)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:202)
>  ~[struts2-core-6.0.0.jar:6.0.
> 2022-08-18 13:52:43,606 INFO  [STDOUT] 0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:67)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:133)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:89)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:142)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:161)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:175)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.csp.CspInterceptor.intercept(CspInterceptor.java:44)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:209)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:229)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:196)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.factory.StrutsActionProxy.execute(StrutsActionProxy.java:48)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:637) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:79)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at java.lang.Thread.run(Thread.java:745) ~[?:1.8.0_74]
> 2022-08-18 13:52:43,609 INFO  [STDOUT] 13:52:43.606 [http-0.0.0.0-443-1] 
> ERROR org.apache.struts2.dispatcher.DefaultDispatcherErrorHandler - Exception 
> occurred during processing request: null
> java.lang.NullPointerException: null
>     at 
> com.XXX.mvc.controller.useraction.discovery.DiscoverNetwork.execute(DiscoverNetwork.java:30)
>  ~[XXX-mvcems.jar:?]
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
> ~[?:1.8.0_74]
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>  ~[?:1.8.0_74]
>     at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74]
>     at ognl.OgnlRuntime.invokeMethodInsideSandbox(OgnlRuntime.java:1245) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:1230) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1958) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68) 
> ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:98)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:90)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:2034) ~[ognl-3.3.3.jar:?]
>     at ognl.ASTMethod.getValueBody(ASTMethod.java:97) ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212) 
> ~[ognl-3.3.3.jar:?]
>     at ognl.SimpleNode.getValue(SimpleNode.java:258) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:586) ~[ognl-3.3.3.jar:?]
>     at ognl.Ognl.getValue(Ognl.java:550) ~[ognl-3.3.3.jar:?]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.lambda$callMethod$2(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecuteMethod(OgnlUtil.java:595)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at com.opensymphony.xwork2.ognl.OgnlUtil.callMethod(OgnlUtil.java:552) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:420)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:293)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.RequestMapInterceptor.intercept(RequestMapInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.AuthorizationInterceptor.intercept(AuthorizationInterceptor.java:61)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SingleAuthorizationInterceptor.intercept(SingleAuthorizationInterceptor.java:86)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.JspInterceptor.intercept(JspInterceptor.java:32)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.LocaleInterceptor.intercept(LocaleInterceptor.java:29)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.SessionInterceptor.intercept(SessionInterceptor.java:83)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ServiceInterceptor.intercept(ServiceInterceptor.java:116)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.XXX.mvc.controller.interceptor.ViewInterceptor.intercept(ViewInterceptor.java:28)
>  ~[XXX-mvcems.jar:?]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:179)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:49)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FetchMetadataInterceptor.intercept(FetchMetadataInterceptor.java:76)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoopInterceptor.intercept(CoopInterceptor.java:57)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CoepInterceptor.intercept(CoepInterceptor.java:56)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.doIntercept(ConversionErrorInterceptor.java:143)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:146)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersIntercept
> 2022-08-18 13:52:43,610 INFO  [STDOUT] or.java:202) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:67)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:133)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:89)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:320)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:101)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:142)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:161)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:175)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.csp.CspInterceptor.intercept(CspInterceptor.java:44)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:209)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:229)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:196)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.factory.StrutsActionProxy.execute(StrutsActionProxy.java:48)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:637) 
> ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:79)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:140)
>  ~[struts2-core-6.0.0.jar:6.0.0]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
>  ~[jboss-web-service.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA 
> date=200905221634)]
>     at 
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
>  ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at 
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 
> ~[jbossweb.jar!/:5.1.0.GA (build: SVNTag=JBoss_5_1_0_GA date=200905221634)]
>     at java.lang.Thread.run(Thread.java:745) ~[?:1.8.0_74]  {code}



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