public boolean
findRRset(Name name, int type) {
	return (findRRset(name, type, Section.ANSWER) ||
		findRRset(name, type, Section.AUTHORITY) ||
		findRRset(name, type, Section.ADDITIONAL));
}
Determines if an RRset with the given name and type is already
present in any section.
@see RRset
@see Section
src/main/java/core/org/xbill/DNS/Message.java