content: package com.alibaba.fastjson2.issues;
  
  import com.alibaba.fastjson2.JSON;
  import org.junit.jupiter.api.Test;
  
  import java.util.List;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  public class Issue397 {
      @Test
      public void test() {
          Bean bean = JSON.parseObject("{\"items\":{}}", Bean.class);
          assertNull(bean.getItems());
      }
  
      public static class Bean {
          public Map<String, Object> getItems() {
              return null;
          }
      }
  
      @Test
      public void test1() {
          Bean1 bean = JSON.parseObject("{\"items\":{}}", Bean1.class);
          assertNull(bean.items);
      }
  
      public static class Bean1 {
          public final Map<String, Object> items = null;
      }
  
      @Test
      public void test2() {
          Bean2 bean = JSON.parseObject("{\"items\":[]}", Bean2.class);
          assertNull(bean.getItems());
      }
  
      public static class Bean2 {
          public List<String> getItems() {
              return null;
          }
      }
  
      @Test
      public void test3() {
          Bean3 bean = JSON.parseObject("{\"items\":[]}", Bean3.class);
          assertNull(bean.items);
      }
  
      public static class Bean3 {
          public final List<String> items = null;
      }
  }
  