'x' is not interface
Sample code:
class x {
//...
}
class c implements x { // 'x' is not interface
//...
}
interface i extends x { // 'x' is not interface
//...
}
You used symbol 'x' in the way that made Codenizer "think" that it should be interface (like some of the examples above). However 'x' is not interface.

