content: package com.alibaba.json.bvt.bug;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  
  import junit.framework.Assert;
  import junit.framework.TestCase;
  
  import com.alibaba.fastjson.JSON;
  
  public class Bug2 extends TestCase {
  
      public void test_0() throws Exception {
          Entity entity = new Entity();
  
          entity.setArticles(Collections.singletonList(new Article()));
  
          String jsonString = JSON.toJSONString(entity);
  
          System.out.println(jsonString);
  
          Entity entity2 = JSON.parseObject(jsonString, Entity.class);
          Assert.assertEquals(entity.getArticles().size(), entity2.getArticles().size());
      }
  
      public static class Entity {
  
          private List<HashMap<String, String>> list     = new ArrayList<HashMap<String, String>>();
          private List<Article>                 articles = null;
  
          public List<HashMap<String, String>> getList() {
              return list;
          }
  
          public void setList(List<HashMap<String, String>> list) {
              this.list = list;
          }
  
          public List<Article> getArticles() {
              return articles;
          }
  
          public void setArticles(List<Article> articles) {
              this.articles = articles;
          }
  
      }
  
      public static class Article {
  
          private long id;
  
          public long getId() {
              return id;
          }
  
          public void setId(long id) {
              this.id = id;
          }
  
      }
  }
  