Creating threads in init for servlet (advanced)

Question

Hello
we have a servlet ..in servlets init method we are creating new threads by calling the Timer class like this
BGMSchedul = new Timer(true);
BGM = new BackManager();
BGMSchedul.scheduleAtFixedRate(BGM, 10000, 30000); //every 30 secondsProblem is that during our stress testing on IBM WSAD we've noticed errors like J2CA0075W: An active transaction should be present
Upon researching this issue further i found this link http://www-1.ibm.com/support/docview.wss?rs=180&uid=swg21231761
which i think suggests that the servlet shouldnt be creating threads which make J2C connections. Our thread is making the DB connection.
does nay one have experince with this sort of problem? is it a bad programming construct to create threds in a servlet? if so..where should we be creating our threads? we want this thread to run every 30 seconds and this is a web appliction.
I'd appreciate any help

Answer 1

I've created a POJO class that implements servletcontextlistener and took out the time thread from servlet and placed it in pojo's contextInitialized method. however, i still get the same warning.