IdP v2.3 and issues with error.jsp?

[Kevin Hall]

Hi,

We are trying to upgrade from v2.1.5 to v2.3.3 but having issues with the 
error.jsp file.

Error from idp-process.log:

10:02:54.648 - ERROR 
[edu.internet2.middleware.shibboleth.common.profile.provider.JSPErrorHandler:86] 
- Could not dispatch to error JSP page: /error.jsp
javax.servlet.ServletException: java.lang.NoSuchMethodError: 
javax.servlet.jsp.JspFactory.getJspApplicationContext(Ljavax/servlet/ServletContext;)Ljavax/servlet/jsp/JspApplicationContext;
.....
Caused by: java.lang.NoSuchMethodError: 
javax.servlet.jsp.JspFactory.getJspApplicationContext(Ljavax/servlet/ServletContext;)Ljavax/servlet/jsp/JspApplicationContext;
	at org.apache.jsp.error_jsp._jspInit(error_jsp.java:23) ~[na:na]


A little bit of info about our environment:
* Debian squeeze, kernel 2.6.32-5-686
* Sun Java 6.26 (also tried openjdk-6 with same result)
* Tomcat 6.0.28-9

Anyone else run into this problem? Know what we are missing?

-Kevin