private DescribeDelegationTokenRequest createDescribeTokenRequest(short version) {
        List<KafkaPrincipal> owners = new ArrayList<>();
        owners.add(SecurityUtils.parseKafkaPrincipal("User:user1"));
        owners.add(SecurityUtils.parseKafkaPrincipal("User:user2"));
        return new DescribeDelegationTokenRequest.Builder(owners).build(version);
    }
Check that all error codes in the response get included in {@link AbstractResponse#errorCounts()}.
clients/src/test/java/org/apache/kafka/common/requests/RequestResponseTest.java