I've removed an unused method from an interface, and expected javac and Eclipse to complain about the fact that my implementing class still claims to override it:
@Override
public void thisMethodNoLongerOverridesAnything() {}
However, I don't get an error or even a warning.
Is there a way to configure javac or Eclipse to complain in this case?
According to the API doc of @Override
If a method is annotated with this annotation type compilers are required to generate an error message unless at least one of the following conditions hold:
- The method does override or implement a method declared in a supertype.
- The method has a signature that is override-equivalent to that of any public method declared in Object.
So either your mothod still overrides something, or you've found a bug in both javac and eclipse, which I doubt.
Errors will come definitely.
interface A{ void funA(); }
class Test implements A{
@Override
public void funA(){
}
@Override
public void B(){
}
}
Errors: The method B() of type Test must override or implement a supertype method
Sugessions: create B() in supertype A
remove Override annotation
In Eclipse:
Properties > Java Compiler > Errors/Warnings
The @Override annotation is under Annotations and ignored by default.
EDIT: Just re-read the question. You want to be warned if you have an unnecessary @Override and not when you are missing it.
