Bobby Wang 730866a7bc
[CI] update spark version to 3.0.0 (#5890)
* [CI] update spark version to 3.0.0

* Update Dockerfile.jvm_cross

Co-authored-by: Philip Hyunsu Cho <chohyu01@cs.washington.edu>
2020-07-16 00:23:44 -07:00
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2019-03-13 02:25:51 +08:00
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