Record
getObject() {
	return new NXTRecord();
}
Next name - this record contains the following name in an ordered list
of names in the zone, and a set of types for which records exist for
this name.  The presence of this record in a response signifies a
failed query for data in a DNSSEC-signed zone. 

@author Brian Wellington
src/main/java/core/org/xbill/DNS/NXTRecord.java