protected Collection<String> getMappedAttributeNamesFromAttributeDefinitionStore(final String entry) {
        return org.springframework.util.StringUtils.commaDelimitedListToSet(
            attributeDefinitionStore.locateAttributeDefinition(entry)
                .map(AttributeDefinition::getName)
                .filter(StringUtils::isNotBlank)
                .orElse(entry));
    }
New attribute statement.

@param context    the context
@param attributes the attributes
@param builder    the builder
@return the attribute statement
@throws Exception the exception
support/cas-server-support-saml-idp-web/src/main/java/org/apereo/cas/support/saml/web/idp/profile/builders/attr/SamlProfileSamlAttributeStatementBuilder.java