We found that the Hadoop Shims were not working as expected when attempting the Gora dependency upgrade over on Nutch 2.X.
The relevant upgrade issue is
The relevant discussion thread is here.
We had a true dependent reliance upon hadoop-client v 2.5.2 within gora-core which is not correct. The reliance should be optional meaning that shims work with the true expectation that we can switch between Hadoop 1 and 2.