7,7c7,7
<  * Copyright:	© by the original author(s) and all contributors
---
>  * Copyright:	? by the original author(s) and all contributors
18a19,19
> import java.util.Collections;
73a75,77
> 		if(newAffectedFigures == null) {
> 			throw new IllegalArgumentException();
> 		}
77a82,84
> 		if(myAffectedFigures == null) {
> 			return new FigureEnumerator(Collections.EMPTY_LIST);
> 		} else {
79a87,87
> 	}