ModelBuildingListener listener = getModelBuildingListener(request);

        if (listener != null) {
            AtomicReference<Model> m = new AtomicReference<>(model);

            ModelBuildingEvent event = new DefaultModelBuildingEvent(model, m::set, request, problems);

            catapult.accept(listener, event);

            return m.get();
        }

                            .source(modelSource)
                            .projectBuild(true)
                            .locationTracking(true)
                            .listener(listener)
                            .build();

                    if (pomFile != null) {
                        project.setRootDirectory(rootLocator.findRoot(pomFile.getParent()));
                    }