Java Type Erasure Problem

Question

I\'ve made an example to demonstrate my problem:

Metrical.java

public interface Metrical
{
    double distance(T other);
}

Answer 1

No there isn't.

You have to remember that someone could call your method with just a vanilla Set, in which case which one would be called?

That's why you can't do it. Just like you can't do:

interface A {
  void blah(Set set);
  void blah(Set set);
}

Same problem.

The type information isn't available at runtime (ie type erasure).