Followed advice from https://github.com/travis-ci/travis-ci/issues/3259 to try and fix travis-ci using an outdated java version
Followed advice from https://github.com/travis-ci/travis-ci/issues/3259 to try and fix travis-ci using an outdated java version

Signed-off-by: Justin Wiblin <37cfa53dc1194024565b9e905a9828c240f5ca5c@hotmail.co.uk>

OTBProject/OTBProject,NthPortal/OTBProject,Thelonedevil/OTBProject