code: public static boolean isNormalized(CharSequence src, Form form) {
          return normalize(src, form).equals(src);
      }
docs: Check whether the given character sequence <code>src</code> is normalized
  according to the normalization method <code>form</code>.
  
  @param src character sequence to check
  @param form normalization form to check against
  @return true if normalized according to <code>form</code>