什么时候以及为什么发生未实现（java.lang.reflect.InvocationTargetException）？

Question

While opening a JFD file in Eclipse, I am got 'Not implemented (java.lang.reflect.InvocationTargetException)'. Can you tell me when and why does it occur?

Answer 1

It means that a method you are calling throws that exception, and you are not doing anything about it. You either need to put the method call in a try/catch block, or you need to re-throw the exception for someone else to handle.