WebLogic is supported also out-of-box but there is special trick which is necessary to be used. You must ensure that your servlet initializer directly implements WebApplicationInitializer (even if you extend from a base class that already implements it). But this solves OpenHub via OpenHubApplication.class.
There is known issue on WebLogic 12c with wrong order of filter initialization. Oracle released patches, but it is possible to solve it with inversion order of filter registration.