Target servlet called getWriter(), then getOutputStream()

Mon, 12 Sep 2005 13:54:21 -0700 

I have a jsp page with 3links :
- One open a popup and write a file in this popup
- One to display some text informations on the same page
- One to upload a file to the server (in fact the file displayed in the first link) 


The three link seems to work well however when I upload a new file (the 
new file is successfully uploaded) but after that the two others links 
are broken



The instruction that produced the stack trace is on the struts action 
that write the file :


                 response.setContentType(mimetype);

                 OutputStream os = response.getOutputStream();    //  
<---- This line generates the stack

                 tosend.writeTo(os);
                 os.flush();


I dont know why because I can call several time the method and it works 
well, the problem only occurs after an upload of a new file



javax.servlet.jsp.JspException: ServletException in 'page.jsp': 
Unexpected internal error during &lt;import&gt: Target servlet called 
getWriter(), then getOutputStream()
   at 
org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:923)

   at org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:462)

   at 
org.apache.jsp.layout_jsp._jspx_meth_tiles_insert_2(org.apache.jsp.layout_jsp:207)
   at 
org.apache.jsp.layout_jsp._jspx_meth_html_html_0(org.apache.jsp.layout_jsp:128)

   at org.apache.jsp.layout_jsp._jspService(org.apache.jsp.layout_jsp:73)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

   at 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
   at 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)

   at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

   at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
   at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
   at 
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
   at 
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
   at 
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
   at 
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1063)
   at 
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:263)
   at 
org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:239)
   at 
org.apache.struts.tiles.TilesRequestProcessor.internalModuleRelativeForward(TilesRequestProcessor.java:341)
   at 
org.apache.struts.action.RequestProcessor.processForward(RequestProcessor.java:560)
   at 
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:209)
   at 
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)

   at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

   at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
   at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
   at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
   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.invoke(StandardEngineValve.java:107)
   at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
   at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
   at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
   at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
   at 
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
   at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)

   at java.lang.Thread.run(Unknown Source)


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