RequestDispatcher: forward call failed

[Blaney, Colin (CAP, CORP Contractor)]

I am trying to chnge my application from grabbing the logon credentials from a url 
(request.getParameter) to grabbing it from a http header (request.getHeader).  All I 
am switching
is how a local variable is getting created and is crashes out to the error.
String userName = request.getParameter("user");
to
String userName = request.getHeader("global_id");
Any suggestions?
Colin

Error:
RequestDispatcher: forward call failed
StackTrace:
javax.servlet.ServletException: RequestDispatcher: forward call failed
        at java.lang.Throwable.fillInStackTrace(Native Method)
        at java.lang.Throwable.fillInStackTrace(Compiled Code)
        at java.lang.Throwable.(Compiled Code)
        at java.lang.Exception.(Compiled Code)
        at javax.servlet.ServletException.(Compiled Code)
        at com.netscape.server.http.servlet.NSRequestDispatcher.forward(Compiled Code)
        at org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:355)
        at _jsps._cockpit._retry_jsp._jspService(_retry_jsp.java:124)
        at org.apache.jasper.runtime.HttpJspBase.service(Compiled Code)
        at javax.servlet.http.HttpServlet.service(Compiled Code)
        at com.netscape.server.http.servlet.NSServletRunner.Service(Compiled Code)

===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST DIGEST".
Some relevant FAQs on JSP/Servlets can be found at:

 http://java.sun.com/products/jsp/faq.html
 http://www.esperanto.org.nz/jsp/jspfaq.html
 http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
 http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets