if (fieldType.isArray() &&
  fieldType.getComponentType().isEnum()) {
  Enum e = (Enum) fieldType.getComponentType().
    getEnumConstants()[0];
  Vector x = new Vector();
  for (Iterator iter = field.getValues(); iter.hasNext();) {
    String val = iter.next();
    x.add(Enum.valueOf(e.getClass(), val));
  }
  fieldDesc.setValue(bean, x.toArray(Arrays.copyOf(
    fieldType.getComponentType().getEnumConstants(),
      x.size())));
}

Maybe there’s a better way to create the array, but i resorted to the trick of: getting the full array of possible values using getEnumConstants(), making a copy of that array with the size of actual values present. Then filling that array with the actual values from a vector.