VidoeWriter, FeatureDetection like SURF, SIFT etc.. Moments, BOWTrainer, Documentation for Eclipse in Java and so on, are missing in OpenCV 3.0 (Bug #4450)

I am using OpenCV 3 which has a wrapper for Java, but I am not able to use SURF and SIFT and some other algorithms in Java. I have tried many ways and googled for a long time, but I cannot find any way for this problem. Also somewhere I even saw that some people says there is now way. Not only this, in Java wrapper I also cannot find VideoWriter class and also BOWTrainer class and so on. Now my question is why OpenCV has a wrapper which is not complete for Java, if there are a lot of problems such as above I mentioned some, then it is no need to publish an incomplete wrapper for another language which is not usable for the users. Before OpenCV 3 I can write video, but now no. I waited for a long time that OpenCV 3 will be good version and will take care of all of the problem of previous versions, but now it has more problem then previous versions (not good documentation for Eclispe ... etc). I think there are alot of problems in OpenCV wrapper for Java, OpenCV must take care of these problems otherwise it is very difficult to use such wrapper in the feature, it call an incomplete wrapper. Thanks