wired behavior

I'm experiencing some kind of wired behavior after switched my app to
enhydra 5.0 from 3.1, i run my app through Tomcat although my app is
based on SuperServlet architecture, i've to say that it runs smooth and
quite well... i'm happy with that.
The behavior is that after a while i start tomcat with its startup.sh
shell script i get flooded of java processes and the machine become
unreliable. I've to kill all java processes and restart the tomcat
server.

I would like to know if the problem could be cause by my code not doing
something necesseray with the registration/deregistration of something
within the Enhydra threading model ...

The mahcine is a RH 7.2 with jdk build 1.4.1-b21.

Thanks in advance... any hints is really appreciated.

Regards,
Thelmo