_>class A <T>{
_>}

_>class B extends A {
_>    public void foo(T t){   //*
_>         ...
_>    }
_>}
_>

class B<T> extends A<T> {
    public void foo(T t){
         ...
    }
}

class B extends A<Object> {
    public void foo(Object t){
         ...
    }
}