static Base64Variants()
 {
     MIME = new com.fasterxml.jackson.core.Base64Variant("MIME", STD_BASE64_ALPHABET,
         true, '=', 76);
 }
 static Base64Variants()
 {
     MIME_NO_LINEFEEDS = new com.fasterxml.jackson.core.Base64Variant(MIME, "MIME-NO-LINEFEEDS"
         , int.MaxValue);
 }
 static Base64Variants()
 {
     System.Text.StringBuilder sb = new System.Text.StringBuilder(STD_BASE64_ALPHABET);
     // Replace plus with hyphen, slash with underscore (and no padding)
     Sharpen.Runtime.setCharAt(sb, sb.indexOf("+"), '-');
     Sharpen.Runtime.setCharAt(sb, sb.indexOf("/"), '_');
     /* And finally, let's not split lines either, wouldn't work too
     * well with URLs
     */
     MODIFIED_FOR_URL = new com.fasterxml.jackson.core.Base64Variant("MODIFIED-FOR-URL"
         , sb.ToString(), false, com.fasterxml.jackson.core.Base64Variant.PADDING_CHAR_NONE
         , int.MaxValue);
 }