Latest version of org.apache.hadoop:hadoop-main
https://javadoc.io/doc/org.apache.hadoop/hadoop-main
Current version 2.8.4
https://javadoc.io/doc/org.apache.hadoop/hadoop-main/2.8.4
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.apache.hadoop/hadoop-main/2.8.4/package-list