Hi ¡ Jeroen, good your solution, but i am this problema…I usign HortonWork SandBox.
java.lang.UnsupportedOperationException: Java Runtime Environment (JRE) version 1.6 is not supported by this driver. Use the sqljdbc4.jar class library, which provides support for JDBC 4.0.
I tried some solutions, but they have not given me results. chague the driver to versión 3.0, but i get the same error.