Added basic check that the Java -> Python exception mapping works.
Added basic check that the Java -> Python exception mapping works.


Former-commit-id: f2918a5546314189210e73bc823b39fe9e12cc0d [formerly dfe66f018b0931ff0d18a3052b3d03d3382142f7]
Former-commit-id: 9de10c7f08bdaae2d5e16c59bed3fd828f3bce39
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine