etFormatsByArgumentIndex}      * method, which assumes an order of formats corresponding to the      * order of elements in the <code>arguments</code> array passed to      * the <code>format</code> methods or the result array returned by      * the <code>parse</code> methods.      *      * @param newFormats the new formats to use      * @exception NullPointerException if <code>newFormats</code> is null      *