final Field resolverField = resolverClass.getDeclaredField("resourceResolverFactory");
resolverField.setAccessible(true);
resolverField.set(servletResolver, factory);
MockBundle bundle = new MockBundle(1L);
MockBundleContext bundleContext = new MockBundleContext(bundle) {
@Override
public ServiceRegistration registerService(String s, Object o, Dictionary dictionary) {
return null;
}