public static String join(String delimiter, Object[] array) {
public static String join(String delimiter, short[] array) {
    public static String join(String delimiter, Object[] array) {        if (array == null) {            return null;        }                StringBuffer buf = new StringBuffer();                for (int i = 0; i < array.length; i++) {            buf.append(array[i]);            if (i + 1 < array.length) {                buf.append(delimiter);            }        }        return buf.toString();    }