public Acl applyAcl(CmisObject cmisObject, String objectId, List<Ace> addAces, List<Ace> removeAces, AclPropagation aclPropagation) { validateObjectOrId(cmisObject, objectId); validateRedundantIdentifier(cmisObject, objectId); CmisObject target = getCmisObject(cmisObject, objectId); if (target != null) { return target.applyAcl(addAces, removeAces, aclPropagation); } return null; }