import org.argeo.slc.client.ui.dist.model.WorkspaceElem;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.argeo.slc.client.ui.dist.model.WorkspaceElem;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;