Do we need to kill jigsaw if we add new classes?

Hello,
	I have java classes, such as Monitor.class (this class has the
extension to HttpServlet) under the directory C:\Jigsaw\Jigsaw\www\servlet\
and the rest of classes (these classes without the extension to HttpServlet)
under the directory C:\base\com\ncs\scoring\.. My question is do we need to
kill (JigKill) jigsaw everytime we add new classes or reload existing
classes to both of the directories above? I sometimes have to kill the
jigsaw and reload it in order to have it run properly. Is that how jigsaw
behaves? Any suggestions would be appreciated. Thanks

Yanto