It seems to be using the JDK 1.4 logger - and ignores the log4j logging configuration.

In particular, this results in lots of the following logging noise every time a request is hit:

INFO: <cache>: Using cached entry for /styles/main-action.css_GET_
27-Jul-2004 20:18:01 org.springframework.orm.hibernate.support.OpenSessionInViewFilter lookupSessionFactory
INFO: Using SessionFactory 'sessionFactory' for OpenSessionInViewFilter
27-Jul-2004 20:18:01 org.springframework.transaction.support.AbstractPlatformTransactionManager commit
INFO: Initiating transaction commit
27-Jul-2004 20:18:01 org.springframework.transaction.support.AbstractPlatformTransactionManager commit
INFO: Initiating transaction commit
27-Jul-2004 20:18:01 org.springframework.transaction.support.AbstractPlatformTransactionManager commit
INFO: Initiating transaction commit
27-Jul-2004 20:18:01 com.opensymphony.oscache.web.filter.CacheFilter doFilter
INFO: <cache>: filter in scope 4
27-Jul-2004 20:18:01 com.opensymphony.oscache.web.filter.CacheFilter doFilter