protected Collection<IInstallableUnit> getIUs() {
return ElementUtils.elementsToIUs(input.getChildren(input));
}
protected IInstallableUnit getSelectedIU() {
java.util.List<IInstallableUnit> units = ElementUtils.elementsToIUs(getSelectedElements());
if (units.size() == 0) return null;
return units.get(0);
}