content: package com.alibaba.fastjson2.v1issues.issue_3900;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.JSONArray;
  import lombok.Data;
  import org.junit.jupiter.api.Test;
  
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class Issue3969 {
      @Test
      public void test_for_issue3969() {
          A a = new A();
          a.s = "str";
          a.c = '0';
          String testJson = JSON.toJSONString(a);
          assertEquals("{\"c\":\"0\",\"s\":\"str\"}", testJson);
          JSONArray jsa = JSON.parseArray("[" + testJson + "]");
          List<A> list = jsa.toJavaList(A.class);
          assertEquals("[A{s='str', c=0}]", list.toString());
      }
  
      @Data
      public static class A {
          private String s;
          private Character c;
  
          public String getS() {
              return s;
          }
  
          public void setS(String s) {
              this.s = s;
          }
  
          public Character getC() {
              return c;
          }
  
          public void setC(Character c) {
              this.c = c;
          }
  
          @Override
          public String toString() {
              return "A{" + "s='" + s + '\'' + ", c=" + c + '}';
          }
      }
  }
  