flink-scala/src/main/scala/org/apache/flink/api/scala/package.scala
flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/package.scala

flink-scala/src/main/scala/org/apache/flink/api/scala/ExecutionEnvironment.scala
flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/StreamExecutionEnvironment.scala