Github user ScrapCodes commented on the pull request:
https://github.com/apache/spark/pull/3111#issuecomment-61952127
I really have no clue how to solve jline dependency issue.
We use jline 0.9.94(jline 1) in hive-cli and hive-thriftserver and scala
repl uses jline2.12. They have different package structures for every class
except Terminal(s).
We can solve this problem in multiple ways
1) put both versions of jline on the class path. (This is dangerous, but
considering we are not using Terminal from jline it should be okay. Saying
without seeing what is inside hive-cli) But build system will not allow two
artifacts with same name and different version. We can not solve this by
shading one, atleast I am not sure if we can.
2) hive-cli refers to jline1 internally, so if we exclude it we will see
(Noclassdefs)
3) This issue has nothing to do with multiple scala builds its just the
problem with scala 2.11 since it depends on jline-jline-2.12 while scala 2.10
depended on org.scala-lang_jline so both coexisted and it was okay then.
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