* {@link UnsupportedOperationException} for methods requiring them. Only
* {@link UuidFactory#get()} and {@link UuidFactory#randomUUID()} are
* implemented, trivially based on {@link UUID#randomUUID()}. It can be useful
* {@link UnsupportedOperationException} for methods requiring them. Only
* {@link UuidFactory#get()} and {@link UuidFactory#randomUUID()} are
* implemented, trivially based on {@link UUID#randomUUID()}. It can be useful