Currently, Janett has beta-quality and translating even medium-size projects has problems:

• The most important one small set of mappings are included in Janett by default (those required in ClassifierForJ). If you want to use NativeMode you may map other libraries yourself. Please contribute them back to Janett using Mappings forum
• Some Java constructs are not transformed for example Inner class members accessibility
• Transformation of some of them are not complete like AnonymousClass