[jira] [Created] (LIVY-562) Add support of scala 2.12

[Viacheslav Tradunsky (JIRA)]

Viacheslav Tradunsky created LIVY-562:
-----------------------------------------

             Summary: Add support of scala 2.12
                 Key: LIVY-562
                 URL: https://issues.apache.org/jira/browse/LIVY-562
             Project: Livy
          Issue Type: Improvement
            Reporter: Viacheslav Tradunsky


I know that adding support of a new scala version is something that can be time 
consuming and would require some testing phase, but it would be great at least 
to have this support in integration-test module (no scala suffix supported 
there, yet).

We can use livy with spark 2.4.0 with scala 2.12 and livy java client, but we 
cannot use integration-test module for testing because it fails on scala 
compatibility issues, such as 

{code:java}

java.lang.NoSuchMethodError: 
scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps;
 at org.apache.livy.test.framework.MiniCluster.<init>(MiniCluster.scala:211)
 at org.apache.livy.test.framework.Cluster$.liftedTree1$1(Cluster.scala:102)
 at 
org.apache.livy.test.framework.Cluster$.cluster$lzycompute(Cluster.scala:100)
 at org.apache.livy.test.framework.Cluster$.cluster(Cluster.scala:98)
 at org.apache.livy.test.framework.Cluster$.get(Cluster.scala:125)

{code}



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