Hi,
I have a rather strange problem with handling an exception within a custom
jsp tag.
The problem is, that pageContext.getException() always returns null.
This is the case within the tag's code, but also witin a Scriptlet within
the JSP.
However, the variable 'exception' itself is properly set.
My error.jsp looks like this:
<[EMAIL PROTECTED] isErrorPage="true" %>
<%@ taglib uri="/WEB-INF/custom.tld" prefix="custom" %>
<%
System.out.println("Exception = " + exception);
System.out.println("exPage = " + pageContext.getException());
%>
<HTML>
<HEAD>
<title>Error</title>
</HEAD>
<body>
<H1>Error occured</H1>
<custom:errortag/>
</body>
</html>
The tag class has code like this:
private Exception getTerribleException() {
if (pageContext.getException() == null) {
System.out.println("pageContext has null exception");
return null;
}
...
}
Well, the output is as mentioned above: only the variable 'exception' within
the JSP can be successfully accessed. Retrieving the exception from the
pageContext always returns null.
Exception = javax.servlet.ServletException: This is my self thrown
exception.
exPage = null
pageContext has null exception
As far as I know, for all error pages (<[EMAIL PROTECTED] isErrorPage="true"
%>),
the counterpart for the implicit variable 'exception' of a JSP is
pageContext.getException().
However, something seems to go wrong.
I'm using JBoss 3.2.26 with integrated Tomcat. I also tried tomcat
standalone (5.0.18), same result.
Help greatly appreciated,
Konrad
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