[GitHub] zeppelin issue #3033: ZEPPELIN-3551. Upgrade Scala to 2.11.12

[zjffdu]

Github user zjffdu commented on the issue:

    https://github.com/apache/zeppelin/pull/3033
  
    I tested it against spark master branch, and it works. What kind of 
problems does spark have on 2.11.12 ?  I notice SPARK-24418 is already merged. 


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