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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=13446 Invalide error page with request attribute. Summary: Invalide error page with request attribute. Product: Tomcat 4 Version: 4.0.1 Final Platform: PC OS/Version: Windows NT/2K Status: NEW Severity: Normal Priority: Other Component: Catalina AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] In a servlet, i want to forward to a JSP error page. For transmit the current exception, i set the attribute javax.servlet.error.exception in the request, and i forward to the error page. This page initialise the exception variable with the exception. Then, in the error page, i call response.sendRedirect ("/index.jsp"); Because the variable "javax.servlet.error.exception" live when i call the sendRedirect, i receive the Tomcat error page and the sendRedirect can't work. I make a sample for check that. Create to JSP file in a webapp. Test.jsp ======== <%@ page errorPage="TestError.jsp" %> Test.jsp <% System.out.println("Test.jsp"); request.setAttribute("javax.servlet.error.exception",new Throwable()); Object n=null; n.toString(); // This statement generate a null pointer exception %> TestError.jsp ============= TestError.jsp <% System.out.println("TestError.jsp"); // Next line for patch the bug // request.removeAttribute("javax.servlet.error.exception"); response.sendRedirect(request.getContextPath()+"/index.jsp"); %> Invoke the Test.jsp page. Because the NullPointerException was throw, the page TestError.jsp is called. This page want to send a redirect to the page index.jsp (must be present). But, you receive the Tomcat error page ! Because the servlet must be deconnected to JSP, normally, the JSP technique for manage the error can be deconnected to the servlet engine. I think, in the ErrorReportValve.java or ErrorDispatcherValve.c can detect this situation (reset this attribute AFTER the service() method, remember it's in error page, ...) Other servlet engine haven't this problem. -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
