I have this file that contains an instance of some Machine object. When I compile the file I have, it says that the class uses a deprecated API, meaning the Machine object. I tried looking for it in this link, but I find nothing. I was wondering if anyone who used Java for a long time knows whether such a class has actually ever existed or not. I am confused. If you know this class has existed, could you please direct me on where to find it. I can't seem to google for it effectively. any advice is appreciated.