I had downloded the trinidad-1.2.7 , but unfortunately it did'nt work with tomcat 5.5.25. and the error was:
No valid ExpressionFactory implementation is available but that's required as this application isn't running in a JSP 2.1 container.
So I have downloaded the tomcat 6.0.16 which is uses the JSP spec 2.1 but it does'nt work yet.I would be glad if any one shares his/her experience with me.