Bug 741743

This is misleading, since it suggests that the Resource has children. Once an expand-node icon is clicked, it disappears, since at that point the tree impl tries to load the children and realizes there aren't any.

To fix this, we'll need to add a new 'hasChildResources' boolean field to ResourceLineageComposite, that the GUI can check to determine if the Resource has children and render the node correctly. This field could be initialized in ResourceManagerBean.getResourceLineageAndSiblings() by executing the following code for each of the "children":

        Query childCountQuery;
        if (authorizationManager.isInventoryManager(user)) {
            childCountQuery = PersistenceUtility.createCountQuery(entityManager,                     Resource.QUERY_FIND_CHILDREN_BY_CATEGORY_AND_INVENTORY_STATUS_ADMIN);
        } else {
            childCountQuery = PersistenceUtility.createCountQuery(entityManager,
                Resource.QUERY_FIND_CHILDREN_BY_CATEGORY_AND_INVENTORY_STATUS);
            childCountQuery.setParameter("subject", user);
        }

        childCountQuery.setParameter("parent", resource);
        childCountQuery.setParameter("category", null);
        childCountQuery.setParameter("status", InventoryStatus.COMMITTED);
        long childCount = (Long) childCountQuery.getSingleResult();

        composite.setHasChildResources(childCount > 0);

However, we'll need to check that this addition doesn't significantly increase the time it takes to load the tree.