GitHub user Fokko opened a pull request: https://github.com/apache/flink/pull/3052
Swap the pattern matching order Swap the pattern matching order, because `EuclideanDistanceMetric extends SquaredEuclideanDistanceMetric extends DistanceMetric`, otherwise the EuclideanDistance cannot be executed: ``` [WARNING] /Users/fokkodriesprong/Desktop/flink-fokko/flink-libraries/flink-ml/src/main/scala/org/apache/flink/ml/nn/QuadTree.scala:106: warning: unreachable code [WARNING] case _: EuclideanDistanceMetric => math.sqrt(minDist) [WARNING] ^ [WARNING] warning: Class org.apache.log4j.Level not found - continuing with a stub. [WARNING] warning: there were 1 feature warning(s); re-run with -feature for details [WARNING] three warnings found ``` You can merge this pull request into a Git repository by running: $ git pull https://github.com/Fokko/flink fd-fix-pattern-matching Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/3052.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 #3052 ---- commit 29ebffc77cfbe917796f44764936972b578ebd38 Author: Fokko Driesprong <fokkodriespr...@godatadriven.com> Date: 2016-12-29T22:49:14Z Swap the pattern matching order, because EuclideanDistanceMetric extends SquaredEuclideanDistanceMetric extends DistanceMetric, otherwise the EuclideanDistance cannot be executed. ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---