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Posted to dev@geronimo.apache.org by "Jeff Genender (JIRA)" <de...@geronimo.apache.org> on 2005/10/17 21:08:46 UTC
[jira] Assigned: (GERONIMO-1084) Trade web primitive--PingServlet2Include failed: getWriter() has already been called for this response
[ http://issues.apache.org/jira/browse/GERONIMO-1084?page=all ]
Jeff Genender reassigned GERONIMO-1084:
---------------------------------------
Assign To: Matt Hogstrom
Lin, are you using the most up-to-date version of the day trader because your line numbers do not match what is in the source repo. In anycase, the Tomcat container is very strict and follows the servlet spec exactly. The servlet spec says:
"SRV.14.2.22.1
getOutputStream()
<SNIP>
Either this method or getWriter() may be called to write the body, not both.
</SNIP>
throws:
IllegalStateException - if the getWriter method has been called on this
response"
I have not looked at the Trader code in detail, but I assume the getWriter() was already calling either a forward or one of the includes, thus I think this is an issue with the Trader app. That line you pointed should probably be changed to use getWriter(). I will assign this to Matt to look at.
> Trade web primitive--PingServlet2Include failed: getWriter() has already been called for this response
> -------------------------------------------------------------------------------------------------------
>
> Key: GERONIMO-1084
> URL: http://issues.apache.org/jira/browse/GERONIMO-1084
> Project: Geronimo
> Type: Bug
> Components: Tomcat
> Versions: 1.0-M5
> Environment: Windows + Tomcat
> Reporter: Lin Sun
> Assignee: Matt Hogstrom
>
> Deployed daytrader and found out day/trader/servlet/PingServlet2Include didn't work, and the exceptions threw:
> Error: PingServlet2Include.doGet(...): general exception
>
> java.lang.IllegalStateException: getWriter() has already been called for this response
> java.lang.IllegalStateException: getWriter() has already been called for this response
> at org.apache.catalina.connector.Response.getOutputStream(Response.java:565)
> at org.apache.catalina.connector.ResponseFacade.getOutputStream(ResponseFacade.java:171)
> at org.apache.geronimo.samples.daytrader.web.prims.PingServlet2Include.doGet(PingServlet2Include.java:61)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
> 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.geronimo.tomcat.valve.TransactionContextValve.invoke(TransactionContextValve.java:53)
> at org.apache.geronimo.tomcat.valve.ComponentContextValve.invoke(ComponentContextValve.java:47)
> at org.apache.geronimo.tomcat.valve.InstanceContextValve.invoke(InstanceContextValve.java:60)
> 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.valves.AccessLogValve.invoke(AccessLogValve.java:526)
> 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(Thread.java:568)
> java.lang.IllegalStateException: getWriter() has already been called for this response
> at org.apache.catalina.connector.Response.getOutputStream(Response.java:565)
> at org.apache.catalina.connector.ResponseFacade.getOutputStream(ResponseFacade.java:171)
> at org.apache.geronimo.samples.daytrader.web.prims.PingServlet2Include.doGet(PingServlet2Include.java:61)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
> 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.geronimo.tomcat.valve.TransactionContextValve.invoke(TransactionContextValve.java:53)
> at org.apache.geronimo.tomcat.valve.ComponentContextValve.invoke(ComponentContextValve.java:47)
> at org.apache.geronimo.tomcat.valve.InstanceContextValve.invoke(InstanceContextValve.java:60)
> 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.valves.AccessLogValve.invoke(AccessLogValve.java:526)
> 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(Thread.java:568)
> java.lang.NullPointerException
> at org.apache.jsp.error_jsp._jspService(org.apache.jsp.error_jsp:96)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
> 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:688)
> 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:465)
> at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
> at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
> at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:362)
> at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:283)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
> at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:526)
> 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(Thread.java:568)
> In org.apache.geronimo.samples.daytrader.web.prims.PingServlet2Include.java file, I tried to replace
> ServletOutputStream out = res.getOutputStream();
> with
> java.io.PrintWriter out = res.getWriter();
> and rebuilt daytrader. I was able to get the primitive working afterwards. However, I don't think changing the code is the right approach since it worked with other web containers.
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