geronimo-mail_2.1_spec/src/main/java/jakarta/mail/internet/MimeUtility.java [1408:1426]:
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        if (nonAsciiChars == 0) {
            // does this contain long text lines?  We need to use a Q-P encoding which will
            // be only slightly longer, but handles folding the longer lines.
            if (containsLongLines) {
                return "quoted-printable";
            }
            else {
                // ideal!  Easiest one to handle.
                return "7bit";
            }
        }
        else {
            // mostly characters requiring encoding?  Base64 is our best bet.
            if (nonAsciiChars > asciiChars) {
                return "base64";
            }
            else {
                // Q-P encoding will use fewer bytes than the full Base64.
                return "quoted-printable";
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geronimo-mail_2.1_spec/src/main/java/org/apache/geronimo/mail/util/ASCIIUtil.java [126:144]:
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        if (nonAsciiChars == 0) {
            // does this contain long text lines?  We need to use a Q-P encoding which will
            // be only slightly longer, but handles folding the longer lines.
            if (containsLongLines) {
                return "quoted-printable";
            }
            else {
                // ideal!  Easiest one to handle.
                return "7bit";
            }
        }
        else {
            // mostly characters requiring encoding?  Base64 is our best bet.
            if (nonAsciiChars > asciiChars) {
                return "base64";
            }
            else {
                // Q-P encoding will use fewer bytes than the full Base64.
                return "quoted-printable";
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