if (property == null) {
return null;
}
if (property instanceof PdSpaceAfter) {
final PdSpaceAfter spaceAfter = (PdSpaceAfter) property;
spaceAfter.addComponent(fobj, propertyFullName,
attributeValue);
return property;
} else {
throw new IllegalStateException("space-after instance "
+ "is of an unexpected type.");