I've created a Jenkins Build with "Check for reviews that need building" option. It is configured to run every 5 hours and considers reviews sent to Jenkins user, for example.
This build is successful as long as the pending reviews have less than 25 revisions of diffs uploaded in Review Board.
When there are more than 25 revisions, I'm getting a java.lang.IndexOutOfBoundsException error during the Review Board query.
The attached snapshot contains the call trace logged on the console output.
In this particular case the latest revision number is 27.