Method fail

src/main/java/com/amazon/ion/Timestamp.java:918–923

(CharSequence input, String reason)

    private static IllegalArgumentException fail(CharSequence input, String reason)
    {
        input = IonTextUtils.printString(input);
        return new IllegalArgumentException("invalid timestamp: " + reason
                                            + ": " + input);
    }

    private static IllegalArgumentException fail(CharSequence input)
    {