@Test
  public void testManifestListReferenceByShaDoesNotFail()
      throws InvalidImageReferenceException, IOException, InterruptedException, ExecutionException,
          RegistryException, CacheDirectoryCreationException {
    Containerizer containerizer =
        Containerizer.to(TarImage.at(temporaryFolder.newFile("goose").toPath()).named("whatever"));

    Jib.from("gcr.io/distroless/base@" + ManifestPullerIntegrationTest.KNOWN_MANIFEST_LIST_SHA)
        .containerize(containerizer);
    // pass, no exceptions thrown
  }
Ensure that a provided executor is not disposed.
jib-core/src/integration-test/java/com/google/cloud/tools/jib/api/JibIntegrationTest.java