/**
* Resolves singletons.
*
* @return the singleton instance
*/
private Object readResolve() {
return Months.of(months);
}
/**
* Returns a new instance of the subclass with a different number of months.
*
* @param amount the number of months to set in the new instance, may be negative
* @return a new period element, not null
*/
@Override
public Months withAmount(int amount) {
return Months.of(amount);
}
