import java.util.Iterator;
import java.util.List;
class A<T> {
List getList() {
return null;
}
}
public class DefaultEventSource<T> extends A {
public Iterator getKeys(){
return null;
}
@Override
List getList() {
return super.getList();
}
void f(DefaultEventSource source){
final Iterator keys = source. getKeys();
final Iterator keys1 = (Iterator)source.getKeys();
final Iterator keys2;
keys2 = source.getKeys();
for (String o : super.getList()) {}
}
}