void
rdataFromString(Tokenizer st, Name origin) throws IOException {
	next = st.getName(origin);
	types = new TypeBitmap(st);
}
Creates an NSEC Record from the given data.
@param next The following name in an ordered list of the zone
@param types An array containing the types present.
src/main/java/core/org/xbill/DNS/NSECRecord.java