[FIXBUG][common]fix yarn applications status cause NPE(#3645) (#3648)

* fix #3645

fix get yarn applications status from yarn server,http code return 404, get yarn applications status cause NullPointerException

* Update HadoopUtils.java

* Update HadoopUtils.java

dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/HadoopUtils.java

@@ -425,17 +425,25 @@ public class HadoopUtils implements Closeable {
         }
         if (responseContent != null) {
             ObjectNode jsonObject = JSONUtils.parseObject(responseContent);
+            if (!jsonObject.has("app")) {
+                return ExecutionStatus.FAILURE;
+            }
             result = jsonObject.path("app").path("finalStatus").asText();
+
         } else {
             //may be in job history
             String jobHistoryUrl = getJobHistoryUrl(applicationId);
             logger.info("jobHistoryUrl={}", jobHistoryUrl);
             responseContent = HttpUtils.get(jobHistoryUrl);
+            if (null != responseContent) {
                 ObjectNode jsonObject = JSONUtils.parseObject(responseContent);
                 if (!jsonObject.has("job")) {
                     return ExecutionStatus.FAILURE;
                 }
                 result = jsonObject.path("job").path("state").asText();
+            } else {
+                return ExecutionStatus.FAILURE;
+            }
         }
 
         switch (result) {