Welcome to a java clone of the popular Facebook and oft-cloned game - Chain Reaction. (Here known as ChainRxn ripped directly off from Mobile1up.com's version (attribution to Aaron Ardiri)).
Option 1: Prior to building ensure you have a repository directory to nominate or use an existing repos you might have thus:
mvn -Dlocal.repos.dir=<MY_LOCAL_REPOS_LOCATION> package
(**Note: Pls specify absolute path here suitable for file:/// postfixing e.g. file:///c:/somepath).
cd target
java -jar chainrxn-1.0-SNAPSHOT.jar
Option 2 (simpler):
mvn clean package exec:exec
- At completion of levels cannot return to start screen(!) - could be incomplete feature
Evernote note: http://goo.gl/U9rv9 - Feel free to have a crack!