YARN-11252. Fix CheckStyle.

Author: slfan1989

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/records/impl/pb/DeleteReservationHomeSubClusterResponsePBImpl.java

@@ -32,7 +32,6 @@
 @Unstable
 public class DeleteReservationHomeSubClusterResponsePBImpl
     extends DeleteReservationHomeSubClusterResponse {
-
   private DeleteReservationHomeSubClusterResponseProto proto =
       DeleteReservationHomeSubClusterResponseProto.getDefaultInstance();
   private DeleteReservationHomeSubClusterResponseProto.Builder builder = null;
@@ -74,5 +73,4 @@ public boolean equals(Object other) {
   public String toString() {
     return TextFormat.shortDebugString(getProto());
   }
-
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/records/impl/pb/UpdateReservationHomeSubClusterResponsePBImpl.java

@@ -74,5 +74,4 @@ public boolean equals(Object other) {
   public String toString() {
     return TextFormat.shortDebugString(getProto());
   }
-
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/utils/FederationReservationHomeSubClusterStoreInputValidator.java

@@ -137,9 +137,8 @@ private static void checkReservationId(ReservationId reservationId)
   public static void validate(UpdateReservationHomeSubClusterRequest request)
       throws FederationStateStoreInvalidInputException {
     if (request == null) {
-      String message = "Missing UpdateReservationHomeSubCluster Request."
-              + " Please try again by specifying"
-              + " an ReservationHomeSubCluster information.";
+      String message = "Missing UpdateReservationHomeSubCluster Request." +
+          " Please try again by specifying an ReservationHomeSubCluster information.";
       LOG.warn(message);
       throw new FederationStateStoreInvalidInputException(message);
     }
@@ -161,8 +160,7 @@ public static void validate(DeleteReservationHomeSubClusterRequest request)
       throws FederationStateStoreInvalidInputException {
     if (request == null) {
       String message = "Missing DeleteReservationHomeSubCluster Request." +
-          " Please try again by specifying" +
-          " an ReservationHomeSubCluster information.";
+          " Please try again by specifying an ReservationHomeSubCluster information.";
       LOG.warn(message);
       throw new FederationStateStoreInvalidInputException(message);
     }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/federation/FederationStateStoreService.java

@@ -125,11 +125,10 @@ protected void serviceInit(Configuration conf) throws Exception {
 
     heartbeatInterval = conf.getLong(
         YarnConfiguration.FEDERATION_STATESTORE_HEARTBEAT_INTERVAL_SECS,
-        YarnConfiguration
-            .DEFAULT_FEDERATION_STATESTORE_HEARTBEAT_INTERVAL_SECS);
+        YarnConfiguration.DEFAULT_FEDERATION_STATESTORE_HEARTBEAT_INTERVAL_SECS);
     if (heartbeatInterval <= 0) {
-      heartbeatInterval = YarnConfiguration
-          .DEFAULT_FEDERATION_STATESTORE_HEARTBEAT_INTERVAL_SECS;
+      heartbeatInterval =
+          YarnConfiguration.DEFAULT_FEDERATION_STATESTORE_HEARTBEAT_INTERVAL_SECS;
     }
     LOG.info("Initialized federation membership service.");