Download and install OpenJDK7, it's Java7 based:
OpenJDK 7 can be downloaded at http://code.google.com/p/openjdk-osx-build/downloads/detail?name=OpenJDK-OSX-1.7-universal-20110825.dmg.
Download and install it to your user(not to the entire machine) and before running mvn install run (or use Java7 as default compiler):
export JAVA_HOME=$(/usr/libexec/java_home -v 1.7)
Configure and add projects dependencies:
Jitescript can be found at https://github.com/qmx/jitescript
Clone it (https://github.com/qmx/jitescript.git) and run mvn install to build and add to your repository
The 1.1.0-SNAPSHOT of aunit can be found at https://github.com/porcelli/aunit
Clone it (https://github.com/porcelli/aunit.git) and run mvn install to build and add to your repository