content: package com.alibaba.fastjson.issue_3200;
  
  import com.alibaba.fastjson.JSON;
  import lombok.AllArgsConstructor;
  import lombok.Builder;
  import lombok.Data;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  import java.util.Date;
  import java.util.HashMap;
  
  /**
   * @Author ：Nanqi
   * @Date ：Created in 10:47 2020/6/22
   * @Description：补充测试用例
   */
  public class Issue3281 {
      @Test
      public void test_for_issue() {
          ModelState modelBack = JSON.parseObject("{\"counterMap\":{\"0\":0,\"100\":0,\"200\":0,\"300\":0,\"400\":0," +
                  "\"500\":0,\"600\":0,\"700\":0,\"800\":0,\"900\":0,\"1000\":0},\"formatDate\":null," +
                  "\"modelName\":\"test\",\"modelScores\":{\"Test1-1000\":{\"max\":1.0997832999999515,\"min\":0.0," +
                  "\"recording\":false}},\"modelVersion\":\"1\",\"pit\":1592470429399,\"useCaseName\":\"test\"," +
                  "\"variableName\":\"v2\"}", ModelState.class);
          Assertions.assertNotNull(modelBack.getCounterMap());
          Assertions.assertNotNull(modelBack.getModelScores());
      }
  
      @Builder
      @Data
      @AllArgsConstructor
      public static class ModelState {
          private HashMap<String, Long> counterMap;
  
          private Date formatDate;
  
          private HashMap<String, TGigest> modelScores;
  
          private String modelName;
  
          private Long modelVersion;
  
          private Long pit;
  
          private String useCaseName;
  
          private String variableName;
      }
  
      @Builder
      @Data
      @AllArgsConstructor
      public static class TGigest {
          private Double max;
  
          private Double min;
  
          private Boolean recording;
      }
  }
  