If someone builds the shaded jars and doesn't pass the -Prelease flag, we get near-empty jars.
We should make sure that if they're loaded they fail loudly rather than as no-ops as they are now.
On a Hadoop 3 cluster without
YARN-7190, this results in the following confusing result:
On a cluster not impacted by
YARN-7190 we'll jsut get a confusing class not found exception.