合并邮件地址

//package com.nowjava;
/** 
来 自 
N o w J a v a . c o m - 时代Java
**/

import java.util.ArrayList;


import java.util.HashSet;

import java.util.List;

import java.util.Set;


import javax.mail.internet.AddressException;

import javax.mail.internet.InternetAddress;


public class Main {

    public static void main(String[] argv) throws Exception {

        List in = java.util.Arrays.asList("asdf", "nowjava.com");

        System.out.println(mergeAddresses(in));
        /*
        时 代 J a v a 公 众 号 - nowjava.com 提 供
        */

    }


    public static List<InternetAddress> mergeAddresses(

            List<InternetAddress>... in) throws AddressException {

        Set<String> emails = new HashSet<>();

        List<InternetAddress> ret = new ArrayList<InternetAddress>();

        for (List<InternetAddress> la : in) {