Speed netty tests shutdown (#126734)

Author: mhl-b

x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/transport/netty4/SecurityNetty4TransportCloseNotifyIT.java

@@ -36,6 +36,7 @@
 
 import java.util.Collection;
 import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.function.Consumer;
 
@@ -121,7 +122,7 @@ public void testSendCloseNotifyAfterHttpGetRequests() throws Exception {
                 channel.close().sync();
             }
         } finally {
-            client.config().group().shutdownGracefully().sync();
+            client.config().group().shutdownGracefully(0, 0, TimeUnit.SECONDS).sync();
         }
     }
 
@@ -150,7 +151,7 @@ public void testSendCloseNotifyCancelAction() throws Exception {
                 channel.close().sync();
             }
         } finally {
-            client.config().group().shutdownGracefully().sync();
+            client.config().group().shutdownGracefully(0, 0, TimeUnit.SECONDS).sync();
         }
     }