@Override
                public RegisteredServicePrincipalAttributesRepository getPrincipalAttributesRepository() {
                    return new DefaultPrincipalAttributesRepository();
                }
Attribute filtering policy tests.

@author Misagh Moayyed
@since 4.0.0
core/cas-server-core-authentication-attributes/src/test/java/org/apereo/cas/services/RegisteredServiceAttributeReleasePolicyTests.java