CoyoteResponseFacade.SendRedirect Yields IllegalStateExcepti
elwallacejr Feb 2, 2005 7:45 PMI've recently installed JBoss 4.01 on WinXP System and have successfully gotton responses from test servlets using the PrintWriter. The problem I have is that my test servlet is derived from a superclass which extends HttpServlet which performs (or soon to perform) validation and state awareness. If during this process in the superclass an error occurs, I would perform a response.sendRedirect("/unknown.html"). Based on the servlet exception I receive, I know that the sendRedirect causes the exception but cannot find anything on the web which helps me out. I've attached the exception and code below.
Thanks,
Ernie
Exception:
2005-02-02 18:41:56,025 ERROR [org.jboss.web.localhost.Engine] StandardWrapperValve[MyServlet]: Servlet.service() for servlet MyServlet threw exception
java.lang.IllegalStateException
at org.apache.coyote.tomcat5.CoyoteResponseFacade.sendRedirect(CoyoteResponseFacade.java:352)
at blueheronsoftware.EventCalendar.GBHSServlet.doPost(GBHSServlet.java:40)
at blueheronsoftware.EventCalendar.MyServlet.doPost(MyServlet.java:29)
at blueheronsoftware.EventCalendar.MyServlet.doGet(MyServlet.java:21)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:66)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:54)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)
Derived Class Code:
public class MyServlet extends GBHSServlet
{
public void doGet(
HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
doPost(request, response);
}
public void doPost(
HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
Application app = null;
super.doPost(request,response,app);
PrintWriter out = response.getWriter();
Super Class Code:
public class GBHSServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response, Application app) throws ServletException, IOException
{
try
{
app = new Application(this.toString(),"");
if(!scrubRequest(request))
response.sendRedirect("/unknown.html");
}
catch(ApplicationException ae)
{
response.sendRedirect("unknown.html");
}
catch(Exception e)
{
response.sendRedirect("unknown.html");
}
if(!scrubRequest(request))
{
response.sendRedirect("unknown.html");
}
}
private boolean scrubRequest(HttpServletRequest request) throws ServletException
{
return false;
}
}