how can we work out the entire DAG of dependencies in a hadoop distro? I'm asking as there are things in 3.4.0 that we shouldn't need (protobuf 2.5), and when I add the pR to move off log4j 1.17 to reload4j, I still find one in the yarn timeline lib dir https://github.com/apache/hadoop/pull/6547
see HADOOP-19074 for a list of what is in 3.4.0 RC0, which predates the new shaded jar.
