@Test void toStringContainsOnlySummaryInformation() {
    assertThat(storage).hasToString(
      "ElasticsearchStorage{initialEndpoints=%s, index=zipkin}".formatted(server.httpUri()));
  }
The {@code toString()} of {@link Component} implementations appear in health check endpoints.
Since these are likely to be exposed in logs and other monitoring tools, care should be taken
to ensure {@code toString()} output is a reasonable length and does not contain sensitive
information.
zipkin-storage/elasticsearch/src/test/java/zipkin2/elasticsearch/ElasticsearchStorageTest.java