Ambiguous overloaded java methods with generics and varargs

I'm trying to understand how java deals with ambiguities in function calls. In the following code, the call to method is ambiguous, but method2 is not!!!.

I feel both are ambiguous, but why does this compile when I comment out the call to method? Why is method2 not ambiguous as well?

public class A {
    public static <K> List<K> method(final K arg, final Object... otherArgs) {
        System.out.println("I'm in one");
        return new ArrayList<K>();
    }

    public static <K> List<K> method(final Object... otherArgs) {
        System.out.println("I'm in two");
        return new ArrayList<K>();
    }

    public static <K, V> Map<K, V> method2(final K k0, final V v0, final Object... keysAndValues) {
        System.out.println("I'm in one");
        return new HashMap<K,V> ();
    }

    public static <K, V> Map<K, V> method2(final Object... keysAndValues) {
        System.out.println("I'm in two");
        return new HashMap<K,V>();
    }

    public static void main(String[] args) {
        Map<String, Integer> c = A.method2( "ACD", new Integer(4), "DFAD" );
        //List<Integer> d = A.method(1, "2", 3  );
    }
}

EDIT: This came up in comments: A number of IDEs report both as ambiguous - IntelliJ and Netbeans so far. However, it compiles just fine from command-line/maven.