EDIT

import eu.etaxonomy.cdm.api.service.IClassificationService;

import eu.etaxonomy.cdm.model.common.CdmBase;

import eu.etaxonomy.cdm.model.common.ICdmBase;

import eu.etaxonomy.cdm.model.taxon.Classification;

import eu.etaxonomy.cdm.model.taxon.TaxonNaturalComparator;

import eu.etaxonomy.cdm.model.taxon.TaxonNode;

		}

		TaxonNodeNavigatorComparator viewerComparator = new TaxonNodeNavigatorComparator(comparator);

		this.getCommonViewer().setComparator(viewerComparator);

        setLinkingEnabled(true);

//		this.getCommonViewer().addSelectionChangedListener(new ISelectionChangedListener() {

//

			// closing the whole application

			// should be handled by the state manager too

		    root = new Root(conversation);

			return root;

		}

		return new EmptyRoot();

		    CdmApplicationState.getCurrentDataChangeService().register(this);

		}

		CdmStore.getLoginManager().addObserver(this);

	}

	/**

     * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getRootEntities()

     */

    @Override

        if(root != null) {

            return root.getParentBeans();

        }