content: package com.alibaba.json.bvt.asm;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import junit.framework.Assert;
  import junit.framework.TestCase;
  
  import com.alibaba.fastjson.JSON;
  
  public class TestList extends TestCase {
  
      public void test_0() throws Exception {
          VO o = new VO();
          o.setId(123);
          {
              Map<String, List<String>> item = new HashMap<String, List<String>>();
              item.put("1", Arrays.asList("a1", "b1"));
              o.getItems().add(item);
          }
          {
              Map<String, List<String>> item = new HashMap<String, List<String>>();
              item.put("2", Arrays.asList("a2", "b2"));
              o.getItems().add(item);
          }
  
          String text = JSON.toJSONString(o);
  
          VO o1 = JSON.parseObject(text, VO.class);
          String text1 = JSON.toJSONString(o1);
  
          Assert.assertEquals(text1, text);
          Assert.assertEquals("{\"id\":123,\"items\":[{\"1\":[\"a1\",\"b1\"]},{\"2\":[\"a2\",\"b2\"]}]}", text);
      }
  
      public static class VO {
  
          private int                             id;
          private List<Map<String, List<String>>> items = new ArrayList<Map<String, List<String>>>();
  
          public int getId() {
              return id;
          }
  
          public void setId(int id) {
              this.id = id;
          }
  
          public List<Map<String, List<String>>> getItems() {
              return items;
          }
  
          public void setItems(List<Map<String, List<String>>> items) {
              this.items = items;
          }
  
      }
  }
  