docs: protected static String wildCardTranslate(String pattern) {
          String separator = ".";
          StringBuffer sb = new StringBuffer();
          String es = escape(separator);
          // special starter
          Matcher ss = Pattern.compile("^([*][*][" + es + "]).*").matcher(pattern);
          if (ss.matches()) {
              pattern = pattern.substring(ss.group(1).length());
              // make leading sep optional
              sb.append("(.*[" + es + "])?");
          }
          // special trailer
          Matcher st = Pattern.compile(".*([" + es + "][*][*])$").matcher(pattern);
          boolean useSt = false;
          if (st.matches()) {
              pattern = pattern.substring(0, st.start(1));
              useSt = true;
          }
          
          for(int i = 0; i != pattern.length(); ++i) {
              char c = pattern.charAt(i);
              if (c == '?') {
                  sb.append("[^" + es + "]");
              }
              else if (c == '*') {
                  if (i + 1 < pattern.length() && pattern.charAt(i+1) == '*') {
                      i++;
                      // **
                      sb.append(".*");
                  }
                  else {
                      sb.append("[^" + es + "]*");
                  }
              }
              else {
                  if (c == '$') {
                      sb.append("\\$");
                  }
                  else if (Character.isJavaIdentifierPart(c) || Character.isWhitespace(c)) {
                      sb.append(c);
                  }
                  else {
                      sb.append('\\').append(c);
                  }
              }
          }
          
          if (useSt) {
              sb.append("([" + es + "].*)?");
          }
          
          return sb.toString();
      }