GitHub user kennknowles opened a pull request: https://github.com/apache/beam/pull/4039
[BEAM-3081] Findbugs stragglers Follow this checklist to help us incorporate your contribution quickly and easily: - [x] Make sure there is a [JIRA issue](https://issues.apache.org/jira/projects/BEAM/issues/) filed for the change (usually before you start working on it). Trivial changes like typos do not require a JIRA issue. Your pull request should address just this issue, without pulling in other changes. - [x] Each commit in the pull request should have a meaningful subject line and body. - [x] Format the pull request title like `[BEAM-XXX] Fixes bug in ApproximateQuantiles`, where you replace `BEAM-XXX` with the appropriate JIRA issue. - [x] Write a pull request description that is detailed enough to understand what the pull request does, how, and why. - [x] Run `mvn clean verify` to make sure basic checks pass. A more thorough check will be performed on your pull request automatically. - [x] If this contribution is large, please file an Apache [Individual Contributor License Agreement](https://www.apache.org/licenses/icla.pdf). --- I did not do a sufficient offline verification during our Jenkins issues. Confirmed that findbugs fails on `master` and succeeds after this change. You can merge this pull request into a Git repository by running: $ git pull https://github.com/kennknowles/beam findbugs-stragglers Alternatively you can review and apply these changes as the patch at: https://github.com/apache/beam/pull/4039.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #4039 ---- commit 84a1df9139a0fa65be6e19db2a106bd082c8ae26 Author: Kenneth Knowles <k...@apache.org> Date: 2017-10-25T16:38:55Z Fix remaining nullability errors ---- ---