Hi Peter. Thanks for your reply. Just a question. If I have understood you right, nowadays you don't need to compile the JSPs using .../lib/tools.jar? Will JBoss run without problems in my case, in which there's no tools.jar? About the SUNWj5rt, if we believe what the package says, it's not a JRE but a JDK (whatever that means, since there's no /lib directory or things like javac.sh...) anonymous wrote : NAME: JDK 5.0 Runtime Env. (1.5.0_11) Again, thanks for your time. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4121743#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...