StandardAuthorizerData copyWithNewAcls(AclCache aclCache) {
        StandardAuthorizerData newData =  new StandardAuthorizerData(
            log,
            aclMutator,
            loadingComplete,
            superUsers,
            noAclRule.result,
            aclCache);
        log.info("Initialized with {} acl(s).", aclCache.count());
        return newData;
    }
Contains all of the current ACLs
metadata/src/main/java/org/apache/kafka/metadata/authorizer/StandardAuthorizerData.java