diff --git a/server/src/main/java/org/opensearch/wlm/QueryGroupService.java b/server/src/main/java/org/opensearch/wlm/QueryGroupService.java
index 6545598dd9951..a03b27fd1978b 100644
--- a/server/src/main/java/org/opensearch/wlm/QueryGroupService.java
+++ b/server/src/main/java/org/opensearch/wlm/QueryGroupService.java
@@ -20,61 +20,61 @@
  * As of now this is a stub and main implementation PR will be raised soon.Coming PR will collate these changes with core QueryGroupService changes
  */
 public class QueryGroupService {
-    // This map does not need to be concurrent since we will process the cluster state change serially and update
-    // this map with new additions and deletions of entries. QueryGroupState is thread safe
-    private final Map<String, QueryGroupState> queryGroupStateMap;
+  // This map does not need to be concurrent since we will process the cluster state change serially and update
+  // this map with new additions and deletions of entries. QueryGroupState is thread safe
+  private final Map<String, QueryGroupState> queryGroupStateMap;
 
-    public QueryGroupService() {
-        this(new HashMap<>());
-    }
+  public QueryGroupService() {
+    this(new HashMap<>());
+  }
 
-    public QueryGroupService(Map<String, QueryGroupState> queryGroupStateMap) {
-        this.queryGroupStateMap = queryGroupStateMap;
-    }
+  public QueryGroupService(Map<String, QueryGroupState> queryGroupStateMap) {
+    this.queryGroupStateMap = queryGroupStateMap;
+  }
 
-    /**
-     * updates the failure stats for the query group
-     * @param queryGroupId query group identifier
-     */
-    public void incrementFailuresFor(final String queryGroupId) {
-        QueryGroupState queryGroupState = queryGroupStateMap.get(queryGroupId);
-        // This can happen if the request failed for a deleted query group
-        // or new queryGroup is being created and has not been acknowledged yet
-        if (queryGroupState == null) {
-            return;
-        }
-        queryGroupState.failures.inc();
+  /**
+   * updates the failure stats for the query group
+   * @param queryGroupId query group identifier
+   */
+  public void incrementFailuresFor(final String queryGroupId) {
+    QueryGroupState queryGroupState = queryGroupStateMap.get(queryGroupId);
+    // This can happen if the request failed for a deleted query group
+    // or new queryGroup is being created and has not been acknowledged yet
+    if (queryGroupState == null) {
+      return;
     }
+    queryGroupState.failures.inc();
+  }
 
-    /**
-     *
-     * @return node level query group stats
-     */
-    public QueryGroupStats nodeStats() {
-        final Map<String, QueryGroupStatsHolder> statsHolderMap = new HashMap<>();
-        for (Map.Entry<String, QueryGroupState> queryGroupsState : queryGroupStateMap.entrySet()) {
-            final String queryGroupId = queryGroupsState.getKey();
-            final QueryGroupState currentState = queryGroupsState.getValue();
+  /**
+   *
+   * @return node level query group stats
+   */
+  public QueryGroupStats nodeStats() {
+    final Map<String, QueryGroupStatsHolder> statsHolderMap = new HashMap<>();
+    for (Map.Entry<String, QueryGroupState> queryGroupsState : queryGroupStateMap.entrySet()) {
+      final String queryGroupId = queryGroupsState.getKey();
+      final QueryGroupState currentState = queryGroupsState.getValue();
 
-            statsHolderMap.put(queryGroupId, QueryGroupStatsHolder.from(currentState));
-        }
-
-        return new QueryGroupStats(statsHolderMap);
+      statsHolderMap.put(queryGroupId, QueryGroupStatsHolder.from(currentState));
     }
 
-    /**
-     *
-     * @param queryGroupId query group identifier
-     */
-    public void rejectIfNeeded(String queryGroupId) {
-        if (queryGroupId == null) return;
-        boolean reject = false;
-        final StringBuilder reason = new StringBuilder();
-        // TODO: At this point this is dummy and we need to decide whether to cancel the request based on last
-        // reported resource usage for the queryGroup. We also need to increment the rejection count here for the
-        // query group
-        if (reject) {
-            throw new OpenSearchRejectedExecutionException("QueryGroup " + queryGroupId + " is already contended." + reason.toString());
-        }
+    return new QueryGroupStats(statsHolderMap);
+  }
+
+  /**
+   *
+   * @param queryGroupId query group identifier
+   */
+  public void rejectIfNeeded(String queryGroupId) {
+    if (queryGroupId == null) return;
+    boolean reject = false;
+    final StringBuilder reason = new StringBuilder();
+    // TODO: At this point this is dummy and we need to decide whether to cancel the request based on last
+    // reported resource usage for the queryGroup. We also need to increment the rejection count here for the
+    // query group
+    if (reject) {
+      throw new OpenSearchRejectedExecutionException("QueryGroup " + queryGroupId + " is already contended." + reason.toString());
     }
+  }
 }