Yes, I've noticed that a couple of days ago.
To be honest with you, I believe the problem is really the embedding of the Atlassian-custom stack.
When you just read the name of the version ... it freezes your blood in the veins: "4.0-beta3-atlassian-1".
At the end of the day, they are documented REST API and we should invoke them directly using a native HTTP stack instead of their hacked APIs.
For the time being, Gerrit master is not released yet and there's no urgency ... but it will be something to fix once 2.14 is released.
Luca.