java Struts2 jump problem in interceptor

java.lang.IllegalStateException 
at org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:405) 
at org.apache.struts2.dispatcher.Dispatcher.sendError(Dispatcher.java:725) 
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488) 
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:467) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96) 
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) 
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) 
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) 
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) 
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) 
at java.lang.Thread.run(Thread.java:595) 

If you look it up on the web, it means that the response.sendRedirect () method is called twice, and after adding an return null, the problem is solved successfully.

Therefore, if you want to report the same type of exception when the page jumps, you should be able to solve it in the same way.