In thread class File has wrong version
in reply to class File has wrong version

gregor42 says :

The lack of formatting in your message makes it difficult to read but I think I get the basic question.

What IDE are you using?

Just because your IDE can resolve the class that you are looking at for type-ahead does not mean that the class is necessarily included in your project's classpath.

And looking at what I can only guess is an error message - your Classpath would seem to be your problem.

- Gregor42