#35 System.exit in deadlocks Webserver during shutdown

[Thomas Rohwer]

This refers to version 0.7.10. During shutdown via
shutdown hooks of the tomcat webserver I am using, the
method shutdown in WebMailServer.java is called.
This method calls System.exit(0). This deadlocks the
shutdown system of the java vm (at least for version
1.4.1).
I removed the call to System.exit(0) in my local
version. This method
should not be called in a servlet environment.