Hi > No, this is just an example. What I'd like to know is if stop/start or reload has the same effect on a webapp as actually shutting down tomcat and starting it back up.
When you stop an webapp, its classloader is discarded. Therefor every information held by you classes is discarded. Whey you restart an webapp, a new classloader is instantiated for that webapp and every class is loaded from scratch. Static vars and such are all-new. Problems occur, if you pass references of you classes to elements outside you classloader (in example by using shared libraries). In that case, the classes referenced from outside your webapp cannot be discarded due to javas typesafe pointers. This might result in the existence of the same static variable in two classloaders. Remember that these are two distinct variables. Even worse, if you manage to get the reference in the old classloader from the shared library it won't be even the same type as it was before since Classes loaded from different classloaders are type-different. Hence avoid to even try to find a way to make information persistent to webapp reloads without writing them somewhere outside the VM. HTH Steffen --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
