content: package com.alibaba.fastjson2.issues;
  
  import com.alibaba.fastjson2.JSON;
  import org.junit.jupiter.api.Test;
  
  import java.io.Serializable;
  
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  public class Issue998 {
      @Test
      public void test() {
          String str = "{\"cloudServiceName\":\"xxx\",\"enterpriseCode\":\"xxx\",\"enterpriseName\":\"xxx\",\"serviceCode\":\"IT_MONITOR_MANAGER_SYSTEM\",\"cloudStyle\":\"\"}";
          EnterpriseCloudServiceVO enterpriseCloudServiceVO = JSON.parseObject(str, EnterpriseCloudServiceVO.class);
          assertNull(enterpriseCloudServiceVO.cloudStyle);
      }
  
      @Test
      public void test1() {
          String str = "{\"cloudServiceName\":\"xxx\",\"enterpriseCode\":\"xxx\",\"enterpriseName\":\"xxx\",\"serviceCode\":\"IT_MONITOR_MANAGER_SYSTEM\",\"cloudStyle\":\"\"}";
          EnterpriseCloudServiceVO1 enterpriseCloudServiceVO = JSON.parseObject(str, EnterpriseCloudServiceVO1.class);
          assertNull(enterpriseCloudServiceVO.cloudStyle);
      }
  
      public static class EnterpriseCloudServiceVO {
          private String enterpriseCode;
          private String enterpriseName;
          private String serviceCode;
          private String cloudServiceName;
          private CloudStyle cloudStyle;
  
          public String getEnterpriseCode() {
              return enterpriseCode;
          }
  
          public void setEnterpriseCode(String enterpriseCode) {
              this.enterpriseCode = enterpriseCode;
          }
  
          public String getEnterpriseName() {
              return enterpriseName;
          }
  
          public void setEnterpriseName(String enterpriseName) {
              this.enterpriseName = enterpriseName;
          }
  
          public String getServiceCode() {
              return serviceCode;
          }
  
          public void setServiceCode(String serviceCode) {
              this.serviceCode = serviceCode;
          }
  
          public String getCloudServiceName() {
              return cloudServiceName;
          }
  
          public void setCloudServiceName(String cloudServiceName) {
              this.cloudServiceName = cloudServiceName;
          }
  
          public CloudStyle getCloudStyle() {
              return cloudStyle;
          }
  
          public void setCloudStyle(CloudStyle cloudStyle) {
              this.cloudStyle = cloudStyle;
          }
      }
  
      private static class EnterpriseCloudServiceVO1 {
          public String enterpriseCode;
          public String enterpriseName;
          public String serviceCode;
          public String cloudServiceName;
          public CloudStyle cloudStyle;
      }
  
      public static class CloudStyle
              implements Serializable {
          private Integer modelId;
  
          public Integer getModelId() {
              return modelId;
          }
  
          public void setModelId(Integer modelId) {
              this.modelId = modelId;
          }
      }
  }
  