ASTNode element = ((JavaElement) this.anchorElement).findNode(this.cuAST);
if (childListPropertyDescriptor.getElementType().isAssignableFrom(element.getClass()))
rewrite.insertBefore(child, element, null);
else
// case of an empty import list: the anchor element is the top level type and cannot be used in insertBefore as it is not the same type
rewrite.insertLast(child, null);
break;
case INSERT_AFTER:
element = ((JavaElement) this.anchorElement).findNode(this.cuAST);
if (childListPropertyDescriptor.getElementType().isAssignableFrom(element.getClass()))
rewrite.insertAfter(child, element, null);