GitHub user yew1eb opened a pull request: https://github.com/apache/flink/pull/4570
[FLINK-7438][DataStream API]Remove useless import, avoid warnings ## What is the purpose of the change Avoid warningsï¼details: [ISSUE #FLINK-7438](https://issues.apache.org/jira/browse/FLINK-7438). ## Brief change log Remove useless "import org.apache.flink.util.OutputTag" in DataStream.scala, AllWindowedStream.scala, WindowedStream.scala ## Verifying this change This change is already covered by existing tests. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (no) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no) ## Documentation - Does this pull request introduce a new feature? (no) - If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented) You can merge this pull request into a Git repository by running: $ git pull https://github.com/yew1eb/flink FLINK-7438 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/4570.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 #4570 ---- commit d28f4b8eca85230faea8c3b8c9b868741fc63886 Author: yew1eb <yew...@gmail.com> Date: 2017-08-22T03:16:51Z Remove useless import, avoid warnings ---- --- 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. ---