Ashutosh Gupta

@ZanderXu, I will fix the checkstyle and spot bugs. Meanwhile can you please help in reviewing the PR. Thank you so much.

@pjfanning - `2.7.1` doesnt seem to be there yet. Can you confirm once? Thanks.

Yeah, I will keep the PR open and keep a check on mvn.

Thanks @slfan1989. I can see here - http://hsqldb.org./ for Version 2.7.0 that ``` Individual jars for Java 6, 8 and 11 are available ```

Thanks @pjfanning @slfan1989 . I think we can wait for a while for 2.7.1 release and take a call if we want to make changes in code or not

> @ashutoshcipher @pjfanning Version 2.7.1 is now available. May I ask you to update the PR? > > > you might be able to specify a 'classifier' - in this...

Thanks @adoroszlai. I am resolving and updating exactly the same in my local :)

> Thanks @ashutoshcipher for the patch. Thank you so much @adoroszlai for reviewing and your comments.

`hadoop.hdfs.server.namenode.ha.TestObserverNode` failure is unrelated. This UT is failing in many PRs as well. JIRA for ref - https://issues.apache.org/jira/browse/HDFS-16801 cc: @adoroszlai

> The only failing Yetus check is `test4tests`, as there are no new tests. Existing tests have passed. I have checked out the change and verified the dependency tree locally:...