DavisBroda commented on issue #881: Cross compilation for scala 2.12.x ? URL: https://github.com/apache/incubator-hudi/issues/881#issuecomment-529526657 The actual dependency issue is in kafka. Kafka 0.8 does not have a scala 2.12 version, so this require updating to Kafka 0.10 or higher. However the spark streaming kafka classes have changed enough that it is non-trivial to update. In particular the `org.apache.spark.streaming.kafka.KafkaCluster` class used in KafkaOffsetGen no longer exists, and does not have a clear replacement in kafka 0.10, which renders it difficult to upgrade.
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