content: package com.alibaba.fastjson2.issues_3500;
  
  import com.alibaba.fastjson2.JSON;
  import org.junit.jupiter.api.Test;
  
  import java.util.Collections;
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  public class Issue3537 {
      @Test
      public void test() {
          String json = "{\"value\":\"\"}";
          SimpleTestValue s = JSON.parseObject(json, SimpleTestValue.class);
          assertEquals("", s.getValue());
          json = "{\"value\":null}";
          s = JSON.parseObject(json, SimpleTestValue.class);
          assertNull(s.getValue());
      }
  
      public static class SimpleTestValue {
          private Object value;
  
          // 标准 getter/setter
          public Object getValue() {
              return value;
          }
          public void setValue(Object value) {
              this.value = value;
          }
  
          // 自定义 getter 会导致问题
          public List<String> getRelates() {
              return Collections.emptyList();
          }
      }
  }
  