Hi, I see a lot of discussion on this topic from almost 10 years ago: e.g., https://issues.apache.org/jira/browse/LUCENE-1482
For 4.5, I relied on 'System.out.println' for writing information for debugging in production. In 6.6, I notice that some classes in Lucene are instantiating a Logger, should I use Logger instead? I tried to log with it, but I don't see any output in logs. Regards Nawab
