private static OAuth20AccessToken buildAccessToken(final Authentication authentication) {
        return buildAccessToken(NeverExpiresExpirationPolicy.INSTANCE, authentication);
    }
This is {@link HeimdallAuthorizationControllerTests}.

@author Misagh Moayyed
@since 7.2.0
support/cas-server-support-heimdall/src/test/java/org/apereo/cas/heimdall/HeimdallAuthorizationControllerTests.java