/**
* Remove the most recently returned Link on the chain.
*
* @throws IllegalStateException is there is no most recently returned Link or if that Link was
* already removed.
*/
public void remove() throws IllegalStateException {
if (latest == null) {
throw new IllegalStateException();
}
if ((latest == origin) && latest.isChained()) {
origin = null;
}
latest.remove();
latest = null;
}