All classes extend Object implicitly. Doing so explicitly is redundant.
Further, declaring the implementation of an interface and one if its parents is also redundant. If you implement the interface, you also
implicitly implement its parents and there’s no need to do so explicitly.
Noncompliant code example
public interface MyFace {
// ...
}
public interface MyOtherFace extends MyFace {
// ...
}
public class Foo
extends Object // Noncompliant
implements MyFace, MyOtherFace { // Noncompliant
//...
}
Compliant solution
public interface MyFace {
// ...
}
public interface MyOtherFace extends MyFace {
// ...
}
public class Foo implements MyOtherFace {
//...
}
