@Override
    public int hashCode() {
        return Objects.hash(
            resourceType,
            resourceName,
            patternType,
            principal,
            host,
            operation,
            permissionType);
    }
A Kafka ACLs which is identified by a UUID and stored in the metadata log.
metadata/src/main/java/org/apache/kafka/metadata/authorizer/StandardAcl.java