Automatic jsp recompile on Jboss AS 7
Most of the applications I work on are based on jsp's and usually run on Jboss AS of various versions. And even though the newer applications are maven based and run on Jboss AS 7, almost nothing have changed in a matter of development. At least I thought that nothing have changed, but that was only because my carelessness. When you are developing web tier, there is no compiler telling you what is wrong in the real time, you depend on syntax validation only. And that enables you to do a lot of small mistakes that usually end up with error 500 and a need to redeploy the application. But this is the case only until you discover the right configuration!