content: package com.alibaba.fastjson2.autoType;
  
  import com.alibaba.fastjson2.JSONB;
  import com.alibaba.fastjson2.JSONReader;
  import com.alibaba.fastjson2.JSONWriter;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertSame;
  
  public class AutoTypeTest23 {
      @Test
      public void test_1() throws Exception {
          Bean1 bean = new Bean1();
          bean.items = new XItem[0];
          bean.items1 = bean.items;
  
          byte[] bytes = JSONB.toBytes(bean, JSONWriter.Feature.WriteClassName, JSONWriter.Feature.FieldBased, JSONWriter.Feature.ReferenceDetection);
  
          JSONB.dump(bytes);
  
          Bean1 bean2 = (Bean1) JSONB.parseObject(bytes, Object.class, JSONReader.Feature.SupportAutoType, JSONReader.Feature.FieldBased);
          assertNotNull(bean2);
          assertNotNull(bean2.items);
          assertNotNull(bean2.items1);
  
          assertSame(bean2.items, bean2.items1);
      }
  
      public static class Bean1 {
          public Item[] items;
          public Item[] items1;
      }
  
      public abstract static class Item {
          public int id;
      }
  
      public static class XItem
              extends Item {
          public XItem(int id) {
              this.id = id;
          }
      }
  
      @Test
      public void test_2() throws Exception {
          Bean2 bean = new Bean2();
          bean.items = new String[]{"a", "b"};
          bean.items1 = bean.items;
  
          byte[] bytes = JSONB.toBytes(bean, JSONWriter.Feature.WriteClassName, JSONWriter.Feature.FieldBased, JSONWriter.Feature.ReferenceDetection);
  
          JSONB.dump(bytes);
  
          Bean2 bean2 = (Bean2) JSONB.parseObject(bytes, Object.class, JSONReader.Feature.SupportAutoType, JSONReader.Feature.FieldBased);
          assertNotNull(bean2);
          assertNotNull(bean2.items);
          assertNotNull(bean2.items1);
  
          assertSame(bean2.items, bean2.items1);
      }
  
      public static class Bean2 {
          public String[] items;
          public String[] items1;
      }
  }
  