return new ModelMapNodeInitializer<T, E>(schema);
        }
        return null;
    }

    @Override
    public Iterable<ModelType<?>> supportedTypes() {
        return ImmutableList.<ModelType<?>>of(MODEL_MAP_MODEL_TYPE);
    }

    private static class ModelMapNodeInitializer<T, E> implements NodeInitializer {
        private final CollectionSchema<T, E> schema;

Class <org.gradle.model.internal.manage.schema.extract.ModelMapNodeInitializerExtractionStrategy$ModelMapNodeInitializer$1> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (ModelMapNodeInitializerExtractionStrategy.java:0)