Please don't resurrect an old thread. Your question is your own question and should be in its own thread. So I am moving this out of this thread to its own and closing this older thread.
So it can't find a class called Controller.tradingController. Is it in your classpath. Also it looks like an inner class. Why are you using an inner class in a Controller class? Doesn't seem like a good idea from a maintainable code perspective.
You have a package that starts with a capital letter? And a class that starts with a lower case letter. I think you got it backwards and that is also why you would think Controller was a class.
