content: package com.alibaba.fastjson2.codec;
  
  import com.alibaba.fastjson2.JSONB;
  import com.alibaba.fastjson2.JSONReader;
  import com.alibaba.fastjson2.JSONWriter;
  import org.junit.jupiter.api.Test;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  public class JSONBTableTest8 {
      @Test
      public void test_0() {
          ItemEvent event = new ItemEvent();
  
          Bean bean = new Bean();
          bean.values = new ArrayList<>();
          bean.values.add(new Item(event));
          bean.values.add(new Item(event));
  
          byte[] bytes = JSONB.toBytes(bean, JSONWriter.Feature.WriteClassName, JSONWriter.Feature.FieldBased, JSONWriter.Feature.ReferenceDetection);
          System.out.println(JSONB.toJSONString(bytes));
  
          Bean bean2 = (Bean) JSONB.parseObject(bytes, Object.class, JSONReader.Feature.SupportAutoType, JSONReader.Feature.FieldBased);
  
          assertEquals(bean.values.size(), bean2.values.size());
          assertNotNull(bean2.values.get(0).event);
          assertNotNull(bean2.values.get(1).event);
          assertSame(bean2.values.get(0).event, bean2.values.get(1).event);
      }
  
      @Test
      public void test_1() {
          ItemEvent event = new ItemEvent();
  
          Bean bean = new Bean();
          bean.values = new ArrayList<>();
          bean.values.add(new Item(event));
          bean.values.add(bean.values.get(0));
  
          byte[] bytes = JSONB.toBytes(bean, JSONWriter.Feature.WriteClassName, JSONWriter.Feature.FieldBased, JSONWriter.Feature.ReferenceDetection);
  
          JSONB.dump(bytes);
  
          Bean bean2 = (Bean) JSONB.parseObject(bytes, Object.class, JSONReader.Feature.SupportAutoType, JSONReader.Feature.FieldBased);
  
          assertEquals(bean.values.getClass(), bean2.values.getClass());
          assertEquals(bean.values.size(), bean2.values.size());
          assertNotNull(bean2.values.get(0).event);
          assertNotNull(bean2.values.get(1).event);
          assertSame(bean2.values.get(0), bean2.values.get(1));
      }
  
      public static class Bean {
          List<Item> values;
      }
  
      public static class Item {
          public ItemEvent event;
  
          public Item(ItemEvent event) {
              this.event = event;
          }
      }
  
      public static class ItemEvent {
      }
  }
  