Fixed checkstyle

Author: segabriel

services-gateway-netty/src/main/java/io/scalecube/services/gateway/ws/WebsocketGatewayAcceptor.java

@@ -143,22 +143,6 @@ private void onComplete(
     }
   }
 
-  private GatewayMessage validateQualifier(GatewayMessage msg) {
-    if (msg.qualifier() == null) {
-      throw WebsocketContextException.badRequest("qualifier is missing", msg);
-    }
-    return msg;
-  }
-
-  private GatewayMessage validateSid(WebsocketGatewaySession session, GatewayMessage msg) {
-    if (session.containsSid(msg.streamId())) {
-      throw WebsocketContextException.badRequest(
-          "sid=" + msg.streamId() + " is already registered", msg);
-    } else {
-      return msg;
-    }
-  }
-
   private Mono<?> onCancel(WebsocketGatewaySession session, GatewayMessage msg) {
     if (!msg.hasSignal(Signal.CANCEL)) {
       return Mono.just(msg);
@@ -175,6 +159,22 @@ private Mono<?> onCancel(WebsocketGatewaySession session, GatewayMessage msg) {
     return session.send(cancelAck); // no need to subscribe here since flatMap will do
   }
 
+  private GatewayMessage validateQualifier(GatewayMessage msg) {
+    if (msg.qualifier() == null) {
+      throw WebsocketContextException.badRequest("qualifier is missing", msg);
+    }
+    return msg;
+  }
+
+  private GatewayMessage validateSid(WebsocketGatewaySession session, GatewayMessage msg) {
+    if (session.containsSid(msg.streamId())) {
+      throw WebsocketContextException.badRequest(
+          "sid=" + msg.streamId() + " is already registered", msg);
+    } else {
+      return msg;
+    }
+  }
+
   private GatewayMessage validateSid(GatewayMessage msg) {
     if (msg.streamId() == null) {
       throw WebsocketContextException.badRequest("sid is missing", msg);