Latest version of org.apache.spark:spark-protobuf_2.12
https://javadoc.io/doc/org.apache.spark/spark-protobuf_2.12
Current version 3.4.4
https://javadoc.io/doc/org.apache.spark/spark-protobuf_2.12/3.4.4
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.apache.spark/spark-protobuf_2.12/3.4.4/package-list