protected static OAuth20AccessToken getAccessToken(final String serviceId, final String clientId) {
        return getAccessToken(UUID.randomUUID().toString(), serviceId, clientId);
    }
This is {@link AbstractOAuth20Tests}.

@author Misagh Moayyed
@since 5.0.0
support/cas-server-support-oauth/src/test/java/org/apereo/cas/AbstractOAuth20Tests.java