//bootstrap the tree exploring process by adding the top node into the tree
ObjectClass top = schemaPool.getObjectClass( "top" ); //$NON-NLS-1$
if ( top != null )
{
ObjectClassWrapper topWrapper = new ObjectClassWrapper( top, intermediate );
intermediate.addElement( topWrapper );
}
//add the unresolved object-classes to the top of the hierarchy
Collection<ObjectClass> objectClasses = objectClassTable.values();
for ( Iterator iter = objectClasses.iterator(); iter.hasNext(); )