Batch processes stop running after 31-12-2010

I noticed that batch processes don’t run after 31-12-2010 on two of my 5.2.x Application Servers.
Restarting the Application Server fixes the problem.

That’s quite odd. Here at Servoy we have quite a few processors running and have not noticed any problems. What os and java version? How was the scheduler configured? Cron style or Servoy style?

I have one server running Servoy 5.2.2, Java 1.6.0_17, Windows Server 2003,
and the other one is Servoy 5.2.4, Java 1.6.0_22, Windows XP SP3.
Scheduler on both servers are configured by a cronjob.

The problem didn’t occur on Servoy 3.5.x Application Servers, btw.