Filed https://issues.apache.org/jira/browse/BEAM-3697
This seems to be a good task for a new contributor, easy and potentially with high payoff (uncovering bugs), and a good way to become cursorily familiar with diverse parts of the codebase by fixing the bugs it finds. Any takers? Description: http://errorprone.info/ is a good static checker that covers a number of bugs not covered by FindBugs or Checkstyle. We use it internally at Google and, when run on the Beam codebase, it occasionally uncovers issues missed during PR review process. It has Maven and Gradle plugins: http://errorprone.info/docs/installation https://github.com/tbroyer/gradle-errorprone-plugin It would be good to integrate it into our Maven and Gradle builds.
