Github user zjffdu commented on the issue:
https://github.com/apache/zeppelin/pull/2237
I don't prefer to call private method `hiveClassesArePresent` which is not
guaranteed to be stable. The cause of hive support broken in spark master is
due to we copied the implementation of `hiveClassesArePresent` of spark 2.0 in
zeppelin, but `hiveClassesArePresent` is changed in spark master. So instead of
checking difference classes for different versions, here I propose to checking
class `InsertIntoHiveTable` which is public.
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