Trade web primitive--PingServlet2Include failed: getWriter() has already been
called for this response
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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
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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