content: package com.alibaba.fastjson2.issues_1500;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.annotation.JSONField;
  import lombok.Data;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class Issue1562 {
      @Test
      public void test() {
          String expected = "{\"value\":null,\"value10\":null,\"value11\":null,\"value12\":null,\"value2\":null,\"value3\":null,\"value4\":null,\"value5\":null,\"value6\":null,\"value7\":null,\"value8\":null,\"value9\":null}";
          assertEquals(expected, JSON.toJSONString(new Cs()));
      }
  
      @Data
      class Cs {
          @JSONField(format = "#.##")
          private double value = Double.NaN;
          @JSONField(format = "#.##")
          private float value2 = Float.NaN;
          @JSONField(format = "#.##")
          private double value3 = Double.NEGATIVE_INFINITY;
          @JSONField(format = "#.##")
          private float value4 = Float.NEGATIVE_INFINITY;
          @JSONField(format = "#.##")
          private double value5 = Double.POSITIVE_INFINITY;
          @JSONField(format = "#.##")
          private float value6 = Float.POSITIVE_INFINITY;
          @JSONField
          private double value7 = Double.NaN;
          @JSONField
          private float value8 = Float.NaN;
          @JSONField
          private double value9 = Double.NEGATIVE_INFINITY;
          @JSONField
          private float value10 = Float.NEGATIVE_INFINITY;
          @JSONField
          private double value11 = Double.POSITIVE_INFINITY;
          @JSONField
          private float value12 = Float.POSITIVE_INFINITY;
      }
  }
  