src/main/java/org/apache/commons/net/ftp/FTPReply.java [106:153]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    public static boolean isNegativePermanent(final int reply) {
        return reply >= 500 && reply < 600;
    }

    /**
     * Determine if a reply code is a negative transient response. All codes beginning with a 4 are negative transient responses. The FTP server will send a
     * negative transient response on the failure of a command that can be reattempted with success.
     *
     * @param reply The reply code to test.
     * @return True if a reply code is a negative transient response, false if not.
     */
    public static boolean isNegativeTransient(final int reply) {
        return reply >= 400 && reply < 500;
    }

    /**
     * Determine if a reply code is a positive completion response. All codes beginning with a 2 are positive completion responses. The FTP server will send a
     * positive completion response on the final successful completion of a command.
     *
     * @param reply The reply code to test.
     * @return True if a reply code is a positive completion response, false if not.
     */
    public static boolean isPositiveCompletion(final int reply) {
        return reply >= 200 && reply < 300;
    }

    /**
     * Determine if a reply code is a positive intermediate response. All codes beginning with a 3 are positive intermediate responses. The FTP server will send
     * a positive intermediate response on the successful completion of one part of a multipart sequence of commands. For example, after a successful USER
     * command, a positive intermediate response will be sent to indicate that the server is ready for the PASS command.
     *
     * @param reply The reply code to test.
     * @return True if a reply code is a positive intermediate response, false if not.
     */
    public static boolean isPositiveIntermediate(final int reply) {
        return reply >= 300 && reply < 400;
    }

    /**
     * Determine if a reply code is a positive preliminary response. All codes beginning with a 1 are positive preliminary responses. Postitive preliminary
     * responses are used to indicate tentative success. No further commands can be issued to the FTP server after a positive preliminary response until a
     * follow-up response is received from the server.
     *
     * @param reply The reply code to test.
     * @return True if a reply code is a positive preliminary response, false if not.
     */
    public static boolean isPositivePreliminary(final int reply) {
        return reply >= 100 && reply < 200;
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



src/main/java/org/apache/commons/net/smtp/SMTPReply.java [57:110]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    public static boolean isNegativePermanent(final int reply) {
        return reply >= 500 && reply < 600;
    }

    /**
     * Determine if a reply code is a negative transient response. All codes beginning with a 4 are negative transient responses. The SMTP server will send a
     * negative transient response on the failure of a command that can be reattempted with success.
     * <p>
     *
     * @param reply The reply code to test.
     * @return True if a reply code is a negative transient response, false if not.
     */
    public static boolean isNegativeTransient(final int reply) {
        return reply >= 400 && reply < 500;
    }

    /**
     * Determine if a reply code is a positive completion response. All codes beginning with a 2 are positive completion responses. The SMTP server will send a
     * positive completion response on the final successful completion of a command.
     * <p>
     *
     * @param reply The reply code to test.
     * @return True if a reply code is a positive completion response, false if not.
     */
    public static boolean isPositiveCompletion(final int reply) {
        return reply >= 200 && reply < 300;
    }

    /**
     * Determine if a reply code is a positive intermediate response. All codes beginning with a 3 are positive intermediate responses. The SMTP server will
     * send a positive intermediate response on the successful completion of one part of a multipart sequence of commands. For example, after a successful DATA
     * command, a positive intermediate response will be sent to indicate that the server is ready to receive the message data.
     * <p>
     *
     * @param reply The reply code to test.
     * @return True if a reply code is a positive intermediate response, false if not.
     */
    public static boolean isPositiveIntermediate(final int reply) {
        return reply >= 300 && reply < 400;
    }

    /**
     * Determine if a reply code is a positive preliminary response. All codes beginning with a 1 are positive preliminary responses. Positive preliminary
     * responses are used to indicate tentative success. No further commands can be issued to the SMTP server after a positive preliminary response until a
     * follow-up response is received from the server.
     * <p>
     * <b> Note: </b> <em> No SMTP commands defined in RFC 822 provide this type of reply. </em>
     * <p>
     *
     * @param reply The reply code to test.
     * @return True if a reply code is a positive preliminary response, false if not.
     */
    public static boolean isPositivePreliminary(final int reply) {
        return reply >= 100 && reply < 200;
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -