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 java.util.LinkedHashSet;
  import java.util.LinkedList;
  import java.util.List;
  import java.util.Set;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  public class AutoTypeTest18 {
      @Test
      public void test_1() throws Exception {
          Bean1 bean = new Bean1();
          bean.values = new LinkedList<>();
          bean.values.add(new XItem());
          bean.values.add(new YItem());
  
          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.values);
          assertEquals(bean.values.getClass(), bean2.values.getClass());
          assertEquals(bean.values.size(), bean2.values.size());
          assertEquals(bean.values.get(0).getClass(), bean2.values.get(0).getClass());
          assertEquals(bean.values.get(1).getClass(), bean2.values.get(1).getClass());
      }
  
      public static class Bean1 {
          public List<Item> values;
      }
  
      public static interface Item {
      }
  
      public static class XItem
              implements Item {
          public XItem() {
          }
      }
  
      public static class YItem
              implements Item {
          public YItem() {
          }
      }
  
      public static enum ZEnum
              implements Item {
          A
      }
  
      @Test
      public void test_2() throws Exception {
          Bean2 bean = new Bean2();
          bean.values = new LinkedHashSet<>();
          bean.values.add(new XItem());
          bean.values.add(new YItem());
          bean.values.add(ZEnum.A);
  
          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.values);
          assertEquals(bean.values.getClass(), bean2.values.getClass());
          assertEquals(bean.values.size(), bean2.values.size());
  
          Object[] array = bean.values.toArray();
          Object[] array2 = bean2.values.toArray();
          assertEquals(array[0].getClass(), array2[0].getClass());
          assertEquals(array[1].getClass(), array2[1].getClass());
          assertEquals(array[2].getClass(), array2[2].getClass());
      }
  
      public static class Bean2 {
          public Set<Item> values;
      }
  }
  