Looking at the gc data from the Wed Dec 8, 2004 19:20 PM posting by koreth, I wonder what is triggering the gc by jboss since the new bucket is not full, nor is the tenured generation collection. What is striking is the size of the permanent generation...which appears to be full...could this be triggering the collections?
If so increasing this with XX:MaxPermSize=<desired size>, maybe doubling the size to 64m may decrease your collection frequency.
thanks
bob