WebLogic NullPointer from PageContextImpl.getAttribute

[Tim Kuntz <ti...@hotmail.com>]

   I have been using WebLogic for a while but am new to Struts and am having 
a problem running Struts as an explicit WebLogic Web application 
(weblogic.httpd.webApp.myapp) due to a problem with WebLogic class loaders.

   The problem is misleading because the error message is a 
NullPointerException from the pageContext.getAttribute() call when 
retrieving the MessageResource (MR) instance. But, if you modify the code 
slightly to retrieve the MR instance directly from the ServletContext you 
get a ClassCastException. To my knowledge, this occurs because the MR is 
being created/stored by the ActionServlet but is retrieved as part of the 
JSP servlet. WebLogic uses 2 different class loaders for these so a 
ClassCast occurs.

   The only way I can eliminate the error is to move the Struts classes and 
my application classes to the WebLogic classpath versus the dynamic 
classpath (WEB-INF/classes). Has anyone else found a workaround for this 
problem?

Thanks,
Tim Kuntz
timkuntz@hotmail.com
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com