I can’t see an easy solution to this. We load Apache Commons IO 1.4 in a classloader way above you along with the rest of the ignition-common stuff.
The path of least resistance is to stop using 2.0 and just use the 1.4 we provide. There’s also a chance we’ll upgrade the version of some of the libraries we include (google-collections which is now guava, apache io commons, etc…) for 7.4.