Add guava to the pom

Signed-off-by: Régis Caspar <regis.caspar@gmail.com>
step2 done

Signed-off-by: Régis Caspar <regis.caspar@gmail.com>
Test for rules

Signed-off-by: Régis Caspar <regis.caspar@gmail.com>
step3 done

Signed-off-by: Régis Caspar <regis.caspar@gmail.com>