public byte []
formerrMessage(byte [] in) {
	Header header;
	try {
		header = new Header(in);
	}
	catch (IOException e) {
		return null;
	}
	return buildErrorMessage(header, Rcode.FORMERR, null);
}
@author Brian Wellington &lt;bwelling@xbill.org&gt;
src/main/java/core/org/xbill/DNS/jnamed.java