return new Present<>(
        checkNotNull(
            function.apply(reference),
            "the Function passed to Optional.transform() must not return null."));
  }

  @Override
  public boolean equals(@CheckForNull Object object) {
    if (object instanceof Present) {
      Present<?> other = (Present<?>) object;
      return reference.equals(other.reference);
    }

    return new Present<>(
        checkNotNull(
            function.apply(reference),
            "the Function passed to Optional.transform() must not return null."));
  }

  @Override
  public boolean equals(@CheckForNull Object object) {
    if (object instanceof Present) {
      Present<?> other = (Present<?>) object;
      return reference.equals(other.reference);
    }

			os.Setenv(k, v)
		}

		ok, err := IsPresent()
		if err != nil && !test.ShouldFail {
			t.Fatalf("Test %d: %v", i, err)
		}
		if err == nil && test.ShouldFail {
			t.Fatalf("Test %d: should have failed but succeeded", i)
		}

		if !test.ShouldFail && ok != test.IsPresent {
			t.Fatalf("Test %d: reported that KMS present=%v - want present=%v", i, ok, test.IsPresent)
		}
	}
}

var isPresentTests = []struct {

	// Otherwise, the metadata is corrupted.
	keyID, idPresent := metadata[MetaKeyID]
	b64KMSSealedKey, kmsKeyPresent := metadata[MetaDataEncryptionKey]
	if !idPresent && kmsKeyPresent {
		return keyID, kmsKey, sealedKey, ctx, Errorf("The object metadata is missing the internal KMS key-ID for SSE-S3")
	}
	if idPresent && !kmsKeyPresent {

	// Otherwise, the metadata is corrupted.
	keyID, idPresent := metadata[MetaKeyID]
	b64KMSSealedKey, kmsKeyPresent := metadata[MetaDataEncryptionKey]
	if !idPresent && kmsKeyPresent {
		return keyID, kmsKey, sealedKey, Errorf("The object metadata is missing the internal KMS key-ID for SSE-S3")
	}
	if idPresent && !kmsKeyPresent {

                    .ifPresent(e -> params.put(Constants.SCHEDULED_JOB, e)).orElse(() -> {
                        logger.warn("Job {} is not found.", scheduledJob.getId());
                    });
            return params;
        };
        findJobByUniqueOf(LaJobUnique.of(id)).ifPresent(job -> {
            if (!job.isUnscheduled()) {

    }

    // DELETE /api/admin/reqheader/setting/{id}
    @Execute
    public JsonResponse<ApiResult> delete$setting(final String id) {
        reqHeaderService.getRequestHeader(id).ifPresent(entity -> {
            try {
                reqHeaderService.delete(entity);
                saveInfo(messages -> messages.addSuccessCrudDeleteCrudTable(GLOBAL));
            } catch (final Exception e) {

    }

    // DELETE /api/admin/webauth/setting/{id}
    @Execute
    public JsonResponse<ApiResult> delete$setting(final String id) {
        webAuthService.getWebAuthentication(id).ifPresent(entity -> {
            try {
                webAuthService.delete(entity);
                saveInfo(messages -> messages.addSuccessCrudDeleteCrudTable(GLOBAL));
            } catch (final Exception e) {

    protected void checkPermission(final LoginHandlingResource resource) throws LoginRequiredException {
        if (FessAdminAction.class.isAssignableFrom(resource.getActionClass())) {
            getSavedUserBean().ifPresent(user -> {
                if (user.hasRoles(fessConfig.getAuthenticationAdminRolesAsArray())) {
                    return;
                }
                final Method executeMethod = resource.getExecuteMethod();

                Optional<RelativeProject> resolvedParent = resolveRelativePath(
                        pomFile, context, Paths.get(path), parent.getGroupId(), parent.getArtifactId());
                resolvedParent.ifPresent(relativeProject -> parent.setVersion(relativeProject.getVersion()));
            }
        }
    }

    //
    // CI friendly versions
    //