@Bean
        public PrincipalAttributesRepositoryCache principalAttributesRepositoryCache() {
            return new DefaultPrincipalAttributesRepositoryCache();
        }
Handles tests for {@link ExpiringPrincipalAttributesRepositoryTests}.

@author Misagh Moayyed
@since 7.0.0
core/cas-server-core/src/test/java/org/apereo/cas/authentication/principal/cache/ExpiringPrincipalAttributesRepositoryTests.java