returns the number of cached principals . concode_field_sep LoadingCache<C,Optional<P>> cache concode_elem_sep Meter cacheMisses concode_elem_sep Authenticator<C,P> underlying concode_elem_sep Timer gets concode_field_sep Optional<P> authenticate concode_elem_sep void invalidateAll concode_elem_sep void invalidateAll concode_elem_sep void invalidateAll concode_elem_sep CacheStats stats concode_elem_sep void invalidate
long function ( ) { return cache . size ( ) ; }