split java logging tests by level, added test for custom level
split java logging tests by level, added test for custom level


Former-commit-id: b46a2ac9058a35cf5fde27f45b9dbdbdf56c7872 [formerly 4b01a170ca266b3afcbe9d58aa3430daaa0d9524] [formerly 4b01a170ca266b3afcbe9d58aa3430daaa0d9524 [formerly a1250eca66ce7faeabffd42970fcceae32c6b6f7]]
Former-commit-id: ea4f4b35c70b9d9f580042f445cfab1e4b34e643
Former-commit-id: 7a3d326cab15d728069db03838252f46de88199b
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine