See https://github.com/apache/tinkerpop/pull/819.
1) Are there any objections to using error-prone compiler instead of OpenJDK's javac compiler? 2) Stephen raised the question, that Tinkerpop project may better use another static analysis tool instead of error-prone. I have to answer that no static analysis tool covers 100% of the errors found by any other tool, so running more tools is always better. 3) Stephen raised the question, what checks should be enabled. I believe this is out of scope of the PR (https://github.com/apache/tinkerpop/pull/819), because it doesn't (and doesn't intent to) enable any more checks beyond the default (= minimal) set of error patterns. More checks may or may not be enabled in later PRs and that could be discussed separately.
