A Maven plugin that compiles JSPs into class files, copies these into the final artifact, and updates the web.xml to reference the compiled classes. This is a fork of the Codehaus jspc-maven-plugin that resolves some long standing issues and gets the Tomcat 7 support released.
See the Maven Project Documentation for goal documentation.
Plugin Usage is also documented on the maven site.
The available JSP compilers can be found by browsing org.jasig.mojo.jspc GroupId.