When checkstyle is activated for Hive in Eclipse environment, it shows all checkstyle problems as errors.

As of now, checkstyle plugin reports all problems as errors. This causes an overwhelming number of errors to show up (3000+) which masks real errors that might be there. Since all the checkstyle violations are not going to be fixed in one shot, it is desirable to lower the severity of checkstyle violations to warnings so that the plugin can be kept enabled. This will encourage developers to spot checkstyle violations in the files they touch and potentially fix them as they go along, along with pointing out violations as they code.