amazonSNS 送信ステータス取得について。

amazonSNSを利用してSMSを送信するシステムを作っています。
送信することはかないまいしたが、配信失敗時のエラーをcatchすることができず、調べたところcloudwatchというサービスからJson形式の配信ステータスを取得できるようです。

Java
1	/**
2	 * SMS送信
3	 * @param customerId　顧客ＩＤ
4	 * @param agreementNo　同意情報NO
5	 * @param telephon　電話番号
6	 * @return　　　　　　検索結果のHTML
7	 * @throws Exception
8	 */
9	@POST
10	@GET
11	@Path("sms")
12	@Consumes({ "application/json"})
13	@Produces({ "application/json; charset=UTF-8" })
14	//public RestApiResponse smssend(@PathParam("customerId") String customerId, SendSmsForm form, Long agreementNo) throws Exception{
15	public RestApiResponse authenticate (@PathParam("customerId")String customerId, String Telephone) throws Exception {
16
17
18		RestApiResponse result = new RestApiResponse();
19		String Message = reloadableConfig.getString("message");
20		String Time = reloadableConfig.getString("time");
21		int Count = reloadableConfig.getInt("count");
22		int smsflag;
23		int i = Count;
24
25		if(Telephone == null){
26			// パラメータなし → エラー
27			result.setNG("The phone number isn't input yet.");
28			return result;                                                 // 結果を返却
29		}
30
31		try {
32
33		String telephone = null;
34		String test = null;
35	    /*メッセージ内容*/
36
37		JSONObject json = new JSONObject(Telephone);
38		telephone = json.getString("Telephone");
39		System.out.println(telephone);
40		if(telephone.length() == 0){
41			result.setNG("The phone number isn't input yet.");
42			return result;                                                 // 結果を返却
43		}
44
45		String message = Message;//reloadable.properties参照
46		String phoneNumber = "+1" + telephone;//固定の"+1"を付ける
47		System.out.println(message);
48		System.out.println(phoneNumber);
49		Map<String, MessageAttributeValue> smsAttributes =
50							new HashMap<String, MessageAttributeValue>();
51					//<set SMS attributes>
52
53		String status = sendSMSMessage(snsClient, message, phoneNumber, smsAttributes);
54		if (status == "FAILURE"){
55			result.setNG("Sending the message is failed.");
56			return result;
57		}
58
59
60		result.setOK();
61		smsflag = 1;
62		agreementService.smsupdate(smsflag,telephone);
63		}catch(Exception  e){
64	        //result.setNG("Sending the message is failed.");
65	        System.out.println(e.getMessage());
66	     }
67
68			return result;
69		}
70
71		public static String sendSMSMessage(AmazonSNSClient snsClient, String message,
72		String phoneNumber, Map<String, MessageAttributeValue> smsAttributes) {
73
74		try{
75		PublishResult result = snsClient.publish(new PublishRequest()
76				.withMessage(message)
77                .withPhoneNumber(phoneNumber)
78                .withMessageAttributes(smsAttributes));
79		System.out.println(result); // Prints the message ID.
80         String id = result.getMessageId();
81         System.out.println(id);
82		int statusCode = result .getSdkHttpMetadata().getHttpStatusCode();
83		System.out.println(statusCode);
84		ResponseMetadata response = result.getSdkResponseMetadata();
85		System.out.println(response);
86
87		SetPlatformApplicationAttributesRequest setPlatformApplicationAttributesRequest = new SetPlatformApplicationAttributesRequest();
88		Map<String, String> attributes = new HashMap<>();
89		attributes.put("SuccessFeedbackRoleArn", "arn:aws:iam::111122223333:role/SNS_CWlogs");
90		attributes.put("FailureFeedbackRoleArn", "arn:aws:iam::111122223333:role/SNS_CWlogs");
91		attributes.put("SuccessFeedbackSampleRate", "5");
92		attributes.put("MessageID", id);
93		setPlatformApplicationAttributesRequest.withAttributes(attributes);
94		System.out.println(attributes);
95		setPlatformApplicationAttributesRequest.setPlatformApplicationArn("arn:aws:sns:us-west-2:111122223333:app/GCM/GCMPushApp");
96		 SetPlatformApplicationAttributesResult res = snsClient.setPlatformApplicationAttributes(setPlatformApplicationAttributesRequest);
97		 ResponseMetadata obj = res.getSdkResponseMetadata();
98
99		String status = null;
100		JSONObject json = new JSONObject(obj);
101		status = json.getString("status");
102		System.out.println(status);