Hi,

I recently tried to upgrade to the newest version of this library, (graphql-spring-boot-starter is now 5.8.1 and graphql-java-tools is now 5.6.0 both of them seem to be graphql-v12 so I think they should be compatible) and didn't find a solution for the new style of creating directives.

Consider this bean in my spring-boot configuration class:

 @Bean public SchemaDirective isAuthorizedDirective() { return new SchemaDirective("isAuthorized", new IsAuthorizedDirectiveResolver()); }

and the respective class:

public class IsAuthorizedDirectiveResolver implements SchemaDirectiveWiring { @Override public GraphQLFieldDefinition onField(SchemaDirectiveWiringEnvironment<GraphQLFieldDefinition> env) { GraphQLFieldDefinition field = env.getElement(); GraphQLFieldsContainer parent = env.getFieldsContainer(); DataFetcher<?> originalDataFetcher = env.getCodeRegistry().getDataFetcher(parent, field); DataFetcher<?> authDataFetcher = dataFetchingEnvironment -> { Authentication auth = SecurityContextHolder.getContext().getAuthentication(); if (auth instanceof JWTAuthentication) { return originalDataFetcher.get(dataFetchingEnvironment); } throw new UnauthorizedError(); }; // adding the authorized fetcher to the code registry builder env.getCodeRegistry().dataFetcher(parent, field, authDataFetcher); return field; } }

On application startup I now run into nullpointer exceptions in the line DataFetcher<?> originalDataFetcher = env.getCodeRegistry().getDataFetcher(parent, field); because getCodeRegistry returns null.

I debugged that now quite a while and the problem seems to be that in DirectiveBehavior.toParameters the conversion to SchemaGeneratorDirectiveHelper.Parameters only stores the runtime wiring, which is ignored while creating the SchemaDirectiveWiringEnvironmentImpl.

A solution could be to unpack the GraphQLCodeRegistry.Builder from the runtime-wiring, either at the first conversion from directive behavior parameters to schema generator parameters, or afterwards.

Maybe I do also only have to change how the directive is added?