use 3rd party Dependencies in Maven Project

Deploy your JAR to your local (file) Repository. You shold also commit this to your CVM System. You can also add JARs as Javadoc or Source.

mvn deploy:deploy-file \
    -DgroupId=<group-id> \
    -DartifactId=<artifact-id> \
    -Dversion=<version> \
    -Dfile=<path-to-file> \
    -Dpackaging=jar \
    -Durl=file:///<project-dir>/repo 
    ( -Dclassifier=javadoc | sources  )

You can now use these JARs in your pom File if they were in a normal Repository:

<project>
...
<repositories>
...
    <repository>
        <id>project.local</id>
        <name>project</name>
        <url>file:${project.basedir}/repo</url>
    </repository>     
...
</repositories>
...
</project>