Unit testing classes with expiring tokens with this library is difficult because it is tied to System.currentTimeMillis() in multiple places. I use JodaTime, which has a number of features which make unit testing easier, including freezing the joda clock at a specified time. I would like to inject the time for iat/exp on creation, and for verifying exp, such that it can be made to work with this Joda functionality.

I am already setting iat/exp manually to leverage this feature, but it doesn't seem possible to do so for verification at this time.