dajac commented on a change in pull request #9374: URL: https://github.com/apache/kafka/pull/9374#discussion_r511804502
########## File path: clients/src/main/java/org/apache/kafka/clients/admin/KafkaAdminClient.java ########## @@ -4166,10 +4167,22 @@ public DescribeUserScramCredentialsResult describeUserScramCredentials(List<Stri Call call = new Call("describeUserScramCredentials", calcDeadlineMs(now, options.timeoutMs()), new LeastLoadedNodeProvider()) { @Override - public DescribeUserScramCredentialsRequest.Builder createRequest(int timeoutMs) { - return new DescribeUserScramCredentialsRequest.Builder( - new DescribeUserScramCredentialsRequestData().setUsers(users.stream().map(user -> - new DescribeUserScramCredentialsRequestData.UserName().setName(user)).collect(Collectors.toList()))); + public DescribeUserScramCredentialsRequest.Builder createRequest(final int timeoutMs) { + final DescribeUserScramCredentialsRequestData requestData = new DescribeUserScramCredentialsRequestData(); + + if (users != null && !users.isEmpty()) { + final List<UserName> userNames = new ArrayList<>(users.size()); + + for (final String user : users) { + if (user != null) { + userNames.add(new UserName().setName(user)); + } + } + + requestData.setUsers(userNames); Review comment: We tend to use the steam api for such small transformations but I don't feel strong about this. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org