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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 29505] New: - Tomcat returns HTTP 500 when I use the JSP error pages mechanism
Date Thu, 10 Jun 2004 16:20:13 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=29505

Tomcat returns HTTP 500 when I use the JSP error pages mechanism

           Summary: Tomcat returns HTTP 500 when I use the JSP error pages
                    mechanism
           Product: Tomcat 5
           Version: 5.0.25
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Servlet & JSP API
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: fchristol@fvc.com


When I use the error page mechanism in JSP,  the server returns an HTTP 500 
error.

This makes IE display an error page instead of my error page.

CAUTION:  IE behavior is very strange on this error.
Indeed, it displays its internal error page if the response has no more than 
512 bytes,  and it displays my error page otherwise.

Here is the network trace returned when I use the error page mechanism.
As you can see, the response is my error page (so the expected one), but HTTP 
code is 500.

=========================================================================
HTTP/1.1 500 Internal Server Error
Content-Type: text/html
Content-Length: 102
Date: Thu, 10 Jun 2004 16:17:20 GMT
Server: Apache-Coyote/1.1
Connection: close

<html>
<body bgcolor="red">
.
.<h1> Exception: java.lang.NullPointerException. 
</body>
</html>
=============================================================


With Tomcat Version 4.1, the status was 200
As shown by the trace below:

=============================================================
HTTP/1.1 200 OK
Content-Type: text/html;charset=ISO-8859-1
Content-Length: 102
Date: Thu, 10 Jun 2004 16:15:09 GMT
Server: Apache-Coyote/1.1

<html>
<body bgcolor="red">
.
.<h1> Exception: java.lang.NullPointerException. 
</body>
</html>
===================================================


Code to reproduce is:

===================================================
--------------- testErr.jsp -------------
<html>
<head>
<meta http-equiv="pragma" content="no-cache"> 
<meta http-equiv="Expires" content="Tue, 20 Aug 1996 14:25:27 GMT">
</head>

<body bgcolor="lightblue">

	<%@ page errorPage="testErrPage.jsp" %>
	<% 
		String name = null;
 
 		// Force an exception because name is null.
		name.equalsIgnoreCase("acura");
	%>

	<H1> Yes fred!!! </H1>
</body>
</html>


--------------- testErrPage.jsp -------------

<html>
<body bgcolor="red">
	<%@ page isErrorPage="true" %>
	<h1> Exception: <%= exception.toString() %>. 
</body>
</html>
===================================================

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