EDIT

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

	 @Override

	 public UpdateResult createChildFeatureNode(FeatureNode node, Feature featureChild){

	     DefinedTermBase feature = termService.save(featureChild);

	     FeatureNode childNode = FeatureNode.NewInstance(featureChild);

	     save(childNode);

	     UpdateResult result = new UpdateResult();

	     node.addChild(childNode);

	     result.addUpdatedObject(node);

	     result.setCdmEntity(node.getFeatureTree());

	     return result;

	 }

	     result.setCdmEntity(node.getFeatureTree());

    /**

     * Creates, saves and adds the specified feature as a child node to the given feature node

     * @param parentNode the feature node where the new feature should be added

     * @param featureChild the feature which should be added to the given feature node

     * @return the result of the operation

     */

    public UpdateResult createChildFeatureNode(FeatureNode node, Feature featureChild);