Apply suggestion from @dgriffon

Co-authored-by: David Griffon <[email protected]>

Author: anttip

src/main/java/graphql/annotations/dataFetchers/MethodDataFetcher.java

@@ -119,7 +119,7 @@ private Object buildArg(Type p, GraphQLType graphQLType, Object arg) {
         if (arg == null) {
             // for Optional parameters null should be returned as Optional.empty() to show a request for a null value
             // and not including the parameter in the query at all should be returned as null to show "undefined" value / not set
-            if ((p instanceof ParameterizedType && ((ParameterizedType) p).getRawType() == Optional.class)) {
+              if (p instanceof ParameterizedType && ((ParameterizedType) p).getRawType() == Optional.class) {
                 return Optional.empty();
             }
             return null;