Hibernate version: 2.1

When initializing Hibernate I receive the following 2 warnings:

Debug level Hibernate log excerpt:

WARNING: Could not find configuration [net.sf.hibernate.cache.UpdateTimestampsCache]; using defaults.

...

Dec 4, 2005 9:19:28 AM net.sf.hibernate.cache.StandardQueryCache <init>
WARNING: Could not find configuration [net.sf.hibernate.cache.StandardQueryCache]; using defaults.


Can someone tell me what this actually means? Is this something I need to be concerned about?

Thanks in advance,