Critical Description
With 'mvn javadoc:javadoc' we now get docs spread over the maven modules. Is there a way to stich them all together?
Also, there are some differences in their generation: hadoop-auth and hadoop-yarn-* hadoop-mapreduce-* modules goto a top-level apidocs dir which isn't the case for hadoop-common and hadoop-hdfs - they go straight to target/site/api.