private void refreshDocTypeIcons() {

        // Hold map of doc type icons keyed on type to save constructing for each row
        restFactory
                .create(EXPLORER_RESOURCE)
                .method(ExplorerResource::fetchDocumentTypes)
                .onSuccess(documentTypes -> {
                    openableTypes = documentTypes
                            .getTypes()
                            .stream()
                            .map(DocumentType::getType)
                            .collect(Collectors.toSet());
                })
                .taskMonitorFactory(this)
                .exec();
    }
Reveal the doc in the Explorer tree
stroom-core-client/src/main/java/stroom/importexport/client/presenter/DependenciesPresenter.java