content: package com.alibaba.fastjson2.issues_2000;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.JSONReader;
  import org.junit.jupiter.api.Test;
  
  import java.nio.charset.StandardCharsets;
  import java.util.HashMap;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  public class Issue2102 {
      @Test
      public void test() {
          byte[] bytes = new byte[]{
                  123, 34, 109, 97, 112, 34, 58, 123, 49, 58, 49, 125, 125
          };
          String str = new String(bytes, StandardCharsets.UTF_8);
          BeanA beanA = JSON.parseObject(bytes, BeanA.class);
          assertEquals(1, beanA.map.size());
          {
              BeanB beanB = JSON.parseObject(bytes, BeanB.class, JSONReader.Feature.AllowUnQuotedFieldNames);
              assertNotNull(beanB);
          }
          {
              BeanB beanB = JSON.parseObject(str, BeanB.class, JSONReader.Feature.AllowUnQuotedFieldNames);
              assertNotNull(beanB);
          }
          {
              BeanB beanB = JSON.parseObject(str.toCharArray(), BeanB.class, JSONReader.Feature.AllowUnQuotedFieldNames);
              assertNotNull(beanB);
          }
      }
  
      public static class BeanA {
          private Map<Integer, Integer> map = new HashMap<>();
  
          public Map<Integer, Integer> getMap() {
              return map;
          }
  
          public void setMap(Map<Integer, Integer> map) {
              this.map = map;
          }
      }
  
      public static class BeanB {
      }
  }
  