code: public static List<String> getExtensions(final String pMIME) {
          String mime = bareMIME(StringUtil.toLowerCase(pMIME));
          if (mime.endsWith("/*")) {
              return getExtensionForWildcard(mime);
          }
          List<String> extensions = sMIMEToExt.get(mime);
          return maskNull(extensions);
      }
docs: Returns all file extension for the given MIME type.
  The default extension will be the first in the list.
  Note that no specific order is given for wildcard types (image/*, *&#47;* etc).
  
  @param pMIME the MIME type
  
  @return a {@link List} of {@code String}s containing the MIME types, or an empty
  list, if there are no known file extensions for the given MIME type.