Github user tillrohrmann commented on the pull request:
https://github.com/apache/flink/pull/1704#issuecomment-191799798
There are scalastyle violations in the code:
```
error
file=/home/travis/build/apache/flink/flink-tests/src/test/scala/org/apache/flink/api/scala/extensions/AcceptPFFilterITCase.scala
message=File must end with newline character
error
file=/home/travis/build/apache/flink/flink-tests/src/test/scala/org/apache/flink/api/scala/extensions/AcceptPFFlatMapITCase.scala
message=File must end with newline character
error
file=/home/travis/build/apache/flink/flink-tests/src/test/scala/org/apache/flink/api/scala/extensions/AcceptPFMapITCase.scala
message=File must end with newline character
```
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