Ensures the internal delegate <code>SessionManager</code> is injected with the newly set
{@link #setCacheManager CacheManager} so it may use it for its internal caching needs.
<p/>
Note: This implementation only injects the CacheManager into the SessionManager if the SessionManager
instance implements the {@link CacheManagerAware CacheManagerAware} interface.
Ensures the internal delegate <code>SessionManager</code> is injected with the newly set {@link #setCacheManager CacheManager} so it may use it for its internal caching needs. <p/> Note: This implementation only injects the CacheManager into the SessionManager if the SessionManager instance implements the {@link CacheManagerAware CacheManagerAware} interface.