remove accents in java

    public static String removeAccents(String s) {
        if (s == null) {
            return null;
        }
        StringBuilder sb = new StringBuilder(s);

        for(int i = 0; i < s.length(); i++) {
            Character c = MAP_NORM.get(sb.charAt(i));
            if(c != null) {
                switch (c)
                {
                  case '´':
                  case '`':
                  case '^':
                  case '~':
                  case '¨':
                  continue;
                }
                sb.setCharAt(i, c.charValue());
            }
        }

        return sb.toString();
    }