Java에서 Rest api(검색)이용시 return 값을 해결을 못하고 있습니다

URL url= new URL(kurl);
HttpURLConnection conn;
conn=(HttpURLConnection) url.openConnection();
conn.setRequestMethod(“GET”);
conn.setRequestProperty(“Authorization”, "KakaoAK " + “카카오키”);
conn.setRequestProperty(“charset”, “utf-8”);

             int responseCode=conn.getResponseCode();
             System.out.println("리스폰 코드"+responseCode);
             if(responseCode==200) {
                   System.out.println("정상적인 코드 번호가 왔습니다");
                   BufferedReader rd=new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
   
                   String line="";
                   while((line=rd.readLine()) !=null) {
                	   System.out.println(line);
                	 //  System.out.println(URLDecoder.decode(line,"UTF-8"));
                   }
             }else {
                   System.out.println("잘못된 코드가 넘어왔습니다 다시 한번 확인 해 주세요");
                   ist=new InputStreamReader(conn.getInputStream(), "utf-8");
             }

이런식으로 작성했습니다

rest api BufferedReader 에 값을 저장할 때 도 UTF-8로 저장을 하고 혹시나 해서 system 에서 디코드를 이용해 보기도 했습니다

그런데 계속 해서 값이 다음과 값이 리턴되고 있습니다.
자바스크립트에서 ajax를 부를때는 정상적으로 출력이 되고 있는데 왜 자바에서 부르면 다음과 같이 한글이 오류가 발생하는 것이지 알고 싶습니다. 또한 해결방법도 알고 싶습니다.

리스폰 코드200
정상적인 코드 번호가 왔습니다
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