Hi I wanna resolve this exception
ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this response
at org.apache.catalina.connector.Response.getWriter(R esponse.java:596)
at org.apache.catalina.connector.ResponseFacade.getWr iter(ResponseFacade.java:186)
at org.apache.jasper.runtime.JspWriterImpl.initOut(
Js pWriterImpl.java:124)
at org.apache.jasper.runtime.JspWriterImpl.flushBuffe r(JspWriterImpl.java:117)
at org.apache.jasper.runtime.PageContextImpl.release( PageContextImpl.java:191)
at org.apache.jasper.runtime.JspFactoryImpl.internalR eleasePageContext(JspFactoryImpl.java:115)
at org.apache.jasper.runtime.JspFactoryImpl.releasePa geContext(JspFactoryImpl.java:75)
at org.apache.jsp.jsp.docdisplay_jsp._jspService(org. apache.jsp.jsp.docdisplay_jsp:83)
at org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:810)
at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:810)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.inv oke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.pro cessRequest(ApplicationDispatcher.java:463)
at org.apache.catalina.core.ApplicationDispatcher.doF orward(ApplicationDispatcher.java:398)
at org.apache.catalina.core.ApplicationDispatcher.for ward(ApplicationDispatcher.java:301)
at org.apache.struts.action.RequestProcessor.doForwar d(RequestProcessor.java:1085)
at org.apache.struts.tiles.TilesRequestProcessor.doFo rward(TilesRequestProcessor.java:263)
at org.apache.struts.action.RequestProcessor.processF orwardConfig(RequestProcessor.java:398)
at org.apache.struts.tiles.TilesRequestProcessor.proc essForwardConfig(TilesRequestProcessor.java:318)
at org.apache.struts.action.RequestProcessor.process( RequestProcessor.java:241)
at org.apache.struts.action.ActionServlet.process(Act ionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doGet(Actio nServlet.java:414)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:810)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doF ilter(ReplyHeaderFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.CustomPrincipalValve .invoke(CustomPrincipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationV alve.invoke(SecurityAssociationValve.java:153)
at org.jboss.web.tomcat.security.JaccContextValve.inv oke(JaccContextValve.java:59)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11Conn ectionHandler.processConnection(Http11Protocol.jav a:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.process Socket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread .run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
Hi