J-ASP is a good tool for converting ASP to JSP(Java Server Page). It makes
the ASP application run on any webserver which supports JSP/Servet
containers. It implements the ASP architructure in Java.

J-ASP supports ASP build-in objects, Installable objects and Mailer, POP3
components. It also supports the VBScript functions. it was tested on Apache
Tomcat3.x , 4.x , WebLogic 6.1, IBM WebSphere, Sun iPlanet etc.

you can see the details from http://www.netcoole.com