Can I get the interface that a method is implementing via Java reflection?

I am writing a messaging component and for certain reasons I need to find out which methods of a class are qualified to be called by the messaging component. Among other criteria, these methods need to be implementing a particular interface. How do I find out exactly these methods via reflection? I do have access to th class but I must not rely on the method names. There could be similar methods in the class that have the same name but not implement the desired (or any) interface. Example:

interface A
{
   long set(Object object)
}

class B implements A
{
   public long set(Object object)
   {
      System.out.println("I am the method they are looking for!");
   }

   public void set(int i, int j)
   {
      System.out.println("I am not the qualifying method!");
   }
}

So, in short words, I want to find the first method through reflection but not the second one. Is this possible in Java?