Question

I do this in my code:

            Enumeration liste = attribut.getListe ();
            if (liste != null) {
                while (liste.hasMoreElements ()) {
...

I have one element in my Enumeration but when I inspect liste.hasMoreElements (), why does it return false?

Answer 1

I would have getListe() always return a collection (empty or otherwise) and only use an Iterator.

e.g.

for(Entry e: getListe()) {
   // do something with e.
}

Instead of creating an empty list you can use Collections.emptyList() (and other empty collections)

If your Enumeration should have an element but doesn’t, it would suggest you have a bug in getListe()