@Override
    public void add(final String token, final String challenge) {
        lock.tryLock(__ -> {
            LOGGER.debug("Adding ACME token [{}] linked to challenge [{}]", token, challenge);
            cache.put(token, challenge);
        });
    }
This is {@link DefaultAcmeChallengeRepository}.

@author Misagh Moayyed
@since 6.4.0
@deprecated since 7.3.0
support/cas-server-support-acme/src/main/java/org/apereo/cas/acme/DefaultAcmeChallengeRepository.java