Github user jvwing commented on the issue: https://github.com/apache/nifi/pull/917 Build with contrib-check passes OK. The TravisCI failure was from memory ("GC overhead limit exceeded"), not code issues. All of my manual testing went well, both with and without versioning. The code quality looks very good. One small thing -- the integration test ITListS3::testGetPropertyDescriptors fails due to the new property descriptors. Would you please update that test? Also, what would you think about a test or two for the versioning feature? Even if you copy/pasted one of the existing integration tests and added `runner.setProperty(ListS3.USE_VERSIONS, "true");`, running it against the non-version-enabled bucket, it would still exercise the S3VersionBucketLister code paths.
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