They changed some method signatures and Iogi broke. This patch fixes Iogi to work with newer guava versions.
Updating to last guava version
Thanks, Sérgio! Do you guys need a new version for a VRaptor release?
Oh, just FYI, the main build method for developing Iogi is ant, with the dependencies stored on the repository (they are supposed to be minimal). Maven support is only there to enable publishing to the sonatype repository.