Using ParameterMap throws ClassCastException

[Morten Andersen]

I am using the ParameterMap in request in an authentication mechanism. 
Therefore I need to do the following:

add a mapping of parameters to the request.getParameter(). I do the following:

import org.apache.catalina.util.ParameterMap;
...
          System.out.println("ParameterMap is a: "+ 
request.getParameterMap().getClass().getName());
            try{
                ParameterMap map = (ParameterMap)request.getParameterMap();
                map.setLocked(false);
                map.putAll(values.getParameterMap());
                map.setLocked(true);
            }catch(Exception e){
                e.printStackTrace();
            }

This gives the following output:
ParameterMap is a org.apache.catalina.util.ParameterMap
And a ClassCastException in this line:
            ParameterMap map = (ParameterMap)request.getParameterMap();
So it seems that they reference to two different class-definitions, but I 
am using the same catalina.jar everywhere. (included it in the WEB-INF/lib dir)

If I put catalina.jar in the WEB-INF/lib dir, then the above error is 
reported, else a ClassNotFoundException is thrown.

I'm using tomcat-4.1 and found the class in the catalina.jar file. Where 
else is it?

Thanks

Morten Andersen
Master of applied mathematics and computer science
Research assistant (in e-learning)
The Maersk Institute of Production technology at Southern Danish University 
www.mip.sdu.dk
Campusvej 55
DK-5230 Odense M
Denmark
+45 6550-3654
+45 6171-1103
Jabber id: [EMAIL PROTECTED]