diff --git a/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/authc/InternalAuthenticationService.java b/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/authc/InternalAuthenticationService.java
index 2e668140a3f..04d3fa5fb20 100644
--- a/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/authc/InternalAuthenticationService.java
+++ b/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/authc/InternalAuthenticationService.java
@@ -241,7 +241,6 @@ public class InternalAuthenticationService extends AbstractComponent implements
      * @throws ElasticsearchSecurityException   If none of the configured realms successfully authenticated the
      *                                          request
      */
-    @SuppressWarnings("unchecked")
     User authenticateWithRealms(String action, TransportMessage<?> message, User fallbackUser) throws ElasticsearchSecurityException {
         AuthenticationToken token;
         try {
diff --git a/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/client/ShieldAuthcClient.java b/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/client/ShieldAuthcClient.java
index 6ea64344b2c..e1fd14456e0 100644
--- a/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/client/ShieldAuthcClient.java
+++ b/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/client/ShieldAuthcClient.java
@@ -28,7 +28,6 @@ public class ShieldAuthcClient {
      * Clears the realm caches. It's possible to clear all user entries from all realms in the cluster or alternatively
      * select the realms (by their unique names) and/or users (by their usernames) that should be evicted.
      */
-    @SuppressWarnings("unchecked")
     public ClearRealmCacheRequestBuilder prepareClearRealmCache() {
         return new ClearRealmCacheRequestBuilder(client);
     }
@@ -37,7 +36,6 @@ public class ShieldAuthcClient {
      * Clears the realm caches. It's possible to clear all user entries from all realms in the cluster or alternatively
      * select the realms (by their unique names) and/or users (by their usernames) that should be evicted.
      */
-    @SuppressWarnings("unchecked")
     public void clearRealmCache(ClearRealmCacheRequest request, ActionListener<ClearRealmCacheResponse> listener) {
         client.execute(ClearRealmCacheAction.INSTANCE, request, listener);
     }
@@ -46,7 +44,6 @@ public class ShieldAuthcClient {
      * Clears the realm caches. It's possible to clear all user entries from all realms in the cluster or alternatively
      * select the realms (by their unique names) and/or users (by their usernames) that should be evicted.
      */
-    @SuppressWarnings("unchecked")
     public ActionFuture<ClearRealmCacheResponse> clearRealmCache(ClearRealmCacheRequest request) {
         return client.execute(ClearRealmCacheAction.INSTANCE, request);
     }
diff --git a/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/transport/ShieldServerTransportService.java b/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/transport/ShieldServerTransportService.java
index 8dc3ef6089e..b5c6e10066b 100644
--- a/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/transport/ShieldServerTransportService.java
+++ b/elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/transport/ShieldServerTransportService.java
@@ -144,7 +144,6 @@ public class ShieldServerTransportService extends TransportService {
         }
 
         @Override
-        @SuppressWarnings("unchecked")
         public void messageReceived(T request, TransportChannel channel, Task task) throws Exception {
             try {
                 if (licenseState.securityEnabled()) {