Hi, This is the umbrella issue for Scala 2.12 support. As Stephan pointed out, the ClosureCleaner and SAMs are currently the main problems. The first is also a problem for Spark, which track their respective progress here: https://issues.apache.org/jira/browse/SPARK-14540 <https://issues.apache.org/jira/browse/SPARK-14540>.
Best, Aljoscha > On 3. Jan 2018, at 10:39, Stephan Ewen <se...@apache.org> wrote: > > Hi Hao Sun! > > This is work in progress, but Scala 2.12 is a bit tricky. I think the Scala > folks have messed this version up a bit, to be honest. > > The main blockers is that Scala 2.12 breaks some classes through its addition > of SAM interface lambdas (similar to Java). Many of the DataStream API > classes have two method variants (one with a Scala Function, one with a Java > SAM interface) which now become ambiguously overloaded methods in Scala 2.12. > > In addition, Scala 2.12 also needs a different closure cleaner, because Scala > 2.12 compiles differently. > > I am adding Aljoscha, who has started working on this... > > Best, > Stephan > > > On Wed, Jan 3, 2018 at 4:13 AM, Hao Sun <ha...@zendesk.com > <mailto:ha...@zendesk.com>> wrote: > Hi team, I am wondering if there is a schedule to support scala 2.12? > If I need flink 1.3+ with scala 2.12, do I just have to cross compile myself? > Is there anything blocking us from using scala 2.12? > > Thanks >
