travis: adding java builds to Travis CI
travis: adding java builds to Travis CI

Signed-off-by: Mihai Tudor Panu <a27de6130c5d32f5817bf40bb8b348582f37a8af@intel.com>

pylbert/upm,stefan-andritoiu/upm,jontrulson/upm,Propanu/upm,afmckinney/upm,intel-iot-devkit/upm,stefan-andritoiu/upm,spitfire88/upm,Jon-ICS/upm,nitirohilla/upm,arfoll/upm,Jon-ICS/upm,arfoll/upm,g-vidal/upm,malikabhi05/upm,arfoll/upm,Propanu/upm,jontrulson/upm,ShawnHymel/upm,malikabhi05/upm,intel-iot-devkit/upm,nitirohilla/upm,nitirohilla/upm,kissbac/upm,malikabhi05/upm,jontrulson/upm,jontrulson/upm,pylbert/upm,Jon-ICS/upm,whbruce/upm,afmckinney/upm,pylbert/upm,malikabhi05/upm,stefan-andritoiu/upm,afmckinney/upm,g-vidal/upm,pylbert/upm,g-vidal/upm,whbruce/upm,ShawnHymel/upm,g-vidal/upm,Jon-ICS/upm,sasmita/upm,stefan-andritoiu/upm,skiselev/upm,skiselev/upm,skiselev/upm,afmckinney/upm,intel-iot-devkit/upm,kissbac/upm,skiselev/upm,sasmita/upm,pylbert/upm,kissbac/upm,ShawnHymel/upm,andreivasiliu2211/upm,andreivasiliu2211/upm,whbruce/upm,ShawnHymel/upm,spitfire88/upm,intel-iot-devkit/upm,stefan-andritoiu/upm,andreivasiliu2211/upm,malikabhi05/upm,kissbac/upm,Propanu/upm,skiselev/upm,arfoll/upm,skiselev/upm,Propanu/upm,stefan-andritoiu/upm,g-vidal/upm,jontrulson/upm,whbruce/upm,g-vidal/upm,spitfire88/upm,spitfire88/upm,intel-iot-devkit/upm,andreivasiliu2211/upm,ShawnHymel/upm,nitirohilla/upm,malikabhi05/upm,nitirohilla/upm,Propanu/upm,spitfire88/upm,andreivasiliu2211/upm,Jon-ICS/upm,Propanu/upm,sasmita/upm,whbruce/upm,intel-iot-devkit/upm,arfoll/upm,afmckinney/upm,kissbac/upm,pylbert/upm,sasmita/upm,sasmita/upm