[LIVY-562] Add support of scala 2.12

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Fix Version/s: 0.8.0
• Assignee: Unassigned
• Reporter: Viacheslav Tradunsky
• Created: 02/Mar/19 21:03
• Updated: 28/Jan/23 19:01
• Resolved: 02/Jul/20 07:52

Description

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 

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)

Issue Links

• duplicates: LIVY-423 Adding Scala 2.12 support
• is duplicated by: LIVY-593 Adding Scala 2.12 support