Timer thread isn't daemon. bug or feature?

I noticed that Timer thread isn't daemon, so I can't exit app if I used timer. Does somebody know why Timer thread isn't daemon?

Assuming you're asking about java.util.Timer: it's a feature. Actually the feature is the constructor that takes a parameter where you specify whether the thread should be daemon or not.

Did you check the API?. I see a constructor with boolean (for daemon) as parameter. You can make the Timer daemon to the invoking thread. However since timer is a thread it can't live beyond the scope of invoking process (JVM).

Thanks. I do not use Timer myself, but I notice that my servlet container can't exit since slide servlet uses not daemon thread, like Timer. Now I know that it's feature of slide to create a Timer with daemon=false

A relatate question. What is appropriate way to stop non daemon thread? Thread.stop()? It's depreceated, but probably Ok for exit, right? Should I do specific action if I met JVM thread when enumerate and kill threads? I mean can it affect normal JVM shutdown if I kill system thread by mistake which isn't deamon?