treePanel.setRootVisible(true);
showFilterAction = new ShowTreeFilterAction(this);
activeObjects = new ActiveObjectProvidingTree(id, tree.getAdaptee());
activeObjects.setActiveObjectConverter(new NodeToEntity());
selectionSynchronizer = new SelectionSynchronizer();
validationService = new TreeValidationService();
tree.getAdaptee().setValidationService(validationService);
setDropDownActions();
addResource(new TreeFocusRootResource(treePanel, activeObjects));
}