public void shutdownConfigRetriever() {
        retriever.shutdown();
    }
@Disabled("because logAndDie is impossible(?) to verify programmatically")
    @Test
    void manually_verify_what_happens_when_first_graph_contains_component_that_throws_exception_in_ctor() {
        writeBootstrapConfigs("thrower", ComponentThrowingExceptionInConstructor.class);
        Container container = newContainer(dirConfigSource);
        try {
            getNewComponentGraph(container);
            fail("Expected to log and die.");
        } catch (Throwable t) {
            fail("Expected to log and die");
        }

        container.shutdownConfigRetriever();
    }