We occasionally see a Hudson build failure on Mac when building the (closed) T2K library. The systems are running Mac OS X 10.7.5. The gradle build is getting the following exception. It will be interesting to see whether this still happens once we upgrade to gradle 1.8.

-------------------------------------------------------------------------------
:graphics:ccMacFontT2K FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':graphics:ccMacFontT2K'.
> java.util.ConcurrentModificationException

* Try:
Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output.

BUILD FAILED