servlets error

I have a linux box running JServ, on top of Apache the servlets use JDBC to query Oracle database in jserv.log, it always showed:

[18/10/1999 11:56:16:917] (ERROR) ajp11: Servlet Error: java.lang.OutOfMemoryErr
or: :

But my linux box has 512MB RAM, I think the memory is enough and the servlets programs free the resources after usage any hints to solve? Received on Mon Oct 18 1999 - 04:42:14 CDT