Github user spmallette commented on the issue: https://github.com/apache/tinkerpop/pull/904 To be clear, I don't think we can force upgrade from 2.4.x to 2.9.x as it creates breaking changes in spark. Sadly, we don't even seem to have a route to resolve that for 3.4.0 because even with the Spark 2.3.x bump we still only get to jackson 2.6.x. Not sure what spark is doing with that.
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