During the End to End testing by the Identity QE team, an issue cropped up when way a badly formatted YAML message was sent in and a NoSuchMethodException was thrown and not caught.
This was originally triaged and worked under a Ninja task.
The PR provided by Dimitry that shows the failure:
The issue was narrowed down to a version mismatch. End result was API Checker Utils used by the Attribute Mapping library was expecting Jackson v2.8.1. I ended up bumping it up to v2.8.9 so it was ready for the next Play JSON upgrade.