This project appears to be neither published to maven central nor google code's snapshot repo (https://code.google.com/p/google-maven-repository/wiki/ProjectSetup).
I would recommend either using:
mvn install:install-file -Dfile=… -DpomFile=… -Dpackaging=jar
or
mvn install:install-file -Dfile=... -DgroupId=... -DartifactId=... -Dversion=1.0-SNAPSHOT -Dpackaging=jar -DgeneratePom=true
This puts the artifact in your local repo directory (.../.m2/repository/) and makes it available for use in the dependencies section of your pom.xml.