public static long parseUnsignedLong(String s) {
		return parseUnsignedLong(s, 10);
	}
Returns the unsigned {@code long} value represented by the given decimal string.

@throws NumberFormatException if the string does not contain a valid unsigned {@code long}
        value
@throws NullPointerException if {@code s} is null
        (in contrast to {@link Long#parseLong(String)})
protostuff-api/src/main/java/io/protostuff/UnsignedNumberUtil.java