apache/incubator-flink — pull request #105 by StephanEwen (2014-08-29 17:35:18+00:00)
Title: [FLINK-1070] Change return type of "getBroadcastVariable()" to List.

`List` is much better to work with than `Collection`. The internal representation was a list anyways.

The change breaks the binary compatibility, but not source compatibility, since `List`can always be cast to `Collection`.