Joseph Bradley 14a8b96476 [jvm-packages] xgboost-spark warning when Spark encryption is turned on (#3667)
* added test, commented out right now

* reinstated test

* added fix for checking encryption settings

* fix by using RDD conf

* fix compilation

* renamed conf

* use SparkSession if available

* fix message

* nop

* code review fixes
2018-09-10 14:21:01 -07:00
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