* @param lifecycleService - cluster singleton service
* @throws Exception - needs to be catch in ConnectionHandler implementation
*/
- void onDeviceContextLevelUp(final DeviceInfo deviceInfo, final LifecycleService lifecycleService) throws Exception;
+ void onDeviceContextLevelUp(final @CheckForNull DeviceInfo deviceInfo,
+ final @CheckForNull LifecycleService lifecycleService) throws Exception;
}