Method unget

src/main/java/core/org/xbill/DNS/Tokenizer.java:354–362

Returns a token to the stream, so that it will be returned by the next call to get(). @throws IllegalStateException There are already ungotten tokens.

()

 * @throws IllegalStateException There are already ungotten tokens.
 */
public void
unget() {
	if (ungottenToken)
		throw new IllegalStateException
				("Cannot unget multiple tokens");
	if (current.type == EOL)
		line--;
	ungottenToken = true;
}

/**
 * Gets the next token from a tokenizer and converts it to a string.