I want to use oscache filter in a spring controlled (and configured) environment: since all of my system is configured in spring files I have implemented a factory bean allowing me to initialize oscache with a spring bean. The only problem is that if I use filters, they are initialized before I have a chance to initialize spring (in websphere 5.1), and since they do initialize eagerly the cache by loading properties from the classpath, things get messed up. I fixed it by creating a clone of CacheFilter that initializes lazily the admin object in the doFilter instead of doing it in the init method: it would be good if this could be added as a configuration option.