So I am really new to this whole webapp thing, and I am maintaining one that another developer built/deployed. At some point every day, or every other day, it stops working (its a REST service - so it starts to throw http500 errors back as responses). The logs dont indicate anything abnormal however. Restarting the tomcat service doesn't help. Shutting down tomcat, deleting the deployment folder, and letting it redeploy, however, does help. I'm really lost as to how to debug this. Any suggestions?