uml uml build object owner owner uml uml owner uml uml owner illeg argument except owner instanc non nl uml non nl runnabl run runnabl run uml uml clazz creat clazz set owner uml uml clazz set uml uml owner owner uml uml uml uml owner nest classifi add clazz owner owner nest classifi add clazz param add clazz chang command cmd chang command model impl run creat owner edit domain command stack execut cmd cmd set object run param owner uml uml run param 