content: package com.alibaba.fastjson2.issues_1000;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.JSONObject;
  import com.alibaba.fastjson2.TypeReference;
  import com.alibaba.fastjson2.annotation.JSONField;
  import lombok.Getter;
  import lombok.Setter;
  import org.junit.jupiter.api.Test;
  
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class Issue1034 {
      @Test
      public void test() {
          String json = "{\"PARAMETER\":{\"SSRC\":[null,15,null,null,null,null,null,null,null,null,null,null,null],\"RUN\":124}}";
          Param<?> param = JSON.parseObject(json, Param.class);
          JSONObject jsonBody = (JSONObject) param.getParameter();
          TypeReference<Bean> typeReference = new TypeReference<Bean>() {};
          Object to = jsonBody.to(typeReference.getType());
          assertEquals("{\"RUN\":124,\"SSRC\":[null,15,null,null,null,null,null,null,null,null,null,null,null]}", JSON.toJSONString(to));
      }
  
      @Getter
      @Setter
      static class Bean {
          @JSONField(name = "RUN")
          private Integer run;
          @JSONField(name = "SSRC")
          private List<Integer> ssrc;
      }
  
      @Getter
      @Setter
      static class Param<T> {
          @JSONField(name = "PARAMETER")
          private T parameter;
      }
  }
  