What are the Jar files required in JBoss 4.2.3 server to pre-compile JSP files? In Jboss-4.0.5 , we used jasper-runtime.jar, jasper-compiler.jar, commons-el.jar to pre-compile JSPs. But these jar files are not available in the 4.2.3 version. I tried to compile JSPs using jbossweb.jar, jasper-jdt.jar present in jboss-web.deployer folder of Jboss 4.2.3, but the build fails as JSPC is not found. I guess the Jars available in jboss-web.deployer doesn't include anything that helps me to pre-compile the JSPs(correct me if I am wrong). If I paste jasper-runtime.jar, jasper-compiler.jar, commons-el.jar present in jbossweb-tomcat55.sar of Jboss 4.0.5 server into jboss-web.deployer folder of Jboss 4.2.3[though this is not the feasible solution for my problem], the build will be successful with no errors. I guess I'm out of luck for the moment and any information regarding server migration would be very helpful. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4248326#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...