Calling overloaded method in parameterized class (Generics)

Question

Hi all,
can anybody tell me, why the following method call produces a compilation-error?
public class Foo<K extends String, V extends Integer> {
    public void bar(V value){
        this.bar(value.toString());
    public void bar(K key){
        System.out.println("Hello World!");
}Eclipse says:
"The method bar(V) in the Type Foo<K,V> is not applicable for the arguments (String)"
Why, doesn't the compiler accept the second method taking the typeparameter subclassing String as argument?

Answer 1

Thank you for your answer, David. You're totally right. When trying to find a simple example, I made some mistakes. ;-)
My real problem looks like this:
public interface IKey {
public interface IValue {
    public IKey getKey();
public class MyHashContainer<K extends IKey, V extends IValue> extends MyContainer<V> {
    private Hashtable<K,V> hash;
    // Inherited from MyContainer<V>:
    public void addElement(V value){
        this.addElement(value.getKey(), value);
   public void addElement(K key, V value){
        hash.put(key, value);
}The error message remains the same.
The problem is, that I have to inherit the method addElement(V value). How can I create a Container which both is polymorphic and handles Ks and Vs only. I don't want to use IKey and IValue in the method's declaration, because I want to avoid type casts whereever possible.