* <p><b>{@code Stream} equivalent:</b> {@link Stream#filter}.
   */
  public static <T extends @Nullable Object> Iterable<T> filter(
      Iterable<T> unfiltered, Predicate<? super T> retainIfTrue) {
    checkNotNull(unfiltered);
    checkNotNull(retainIfTrue);
    return new FluentIterable<T>() {
      @Override
      public Iterator<T> iterator() {
        return Iterators.filter(unfiltered.iterator(), retainIfTrue);
      }

* **Serialize** the returned data to JSON using Pydantic, which is written in **Rust**, so it will be **much faster**.

But most importantly:

* It will **limit and filter** the output data to what is defined in the return type.
    * This is particularly important for **security**, we'll see more of that below.

## `response_model` Parameter { #response-model-parameter }

        void testListFilesWithFilter() throws SmbException {
            // Arrange
            SmbFilenameFilter filter = (dir, name) -> name.endsWith(".txt");
            doReturn(new SmbFile[0]).when(smbFile).listFiles((SmbFilenameFilter) filter);

            // Act
            SmbFile[] files = smbFile.listFiles(filter);

            // Assert
            assertNotNull(files);
            assertEquals(0, files.length);

                    form.permissions = stream(entity.getPermissions()).get(stream -> stream.map(permissionHelper::decode)
                            .filter(StringUtil::isNotBlank)
                            .distinct()
                            .collect(Collectors.joining("\n")));
                    form.crudMode = crudMode;
                }).orElse(() -> {

        final PermissionHelper permissionHelper = ComponentUtil.getPermissionHelper();
        body.permissions = stream(entity.getPermissions()).get(stream -> stream.map(s -> permissionHelper.decode(s))
                .filter(StringUtil::isNotBlank)
                .distinct()
                .collect(Collectors.joining("\n")));
        return asJson(new ApiResult.ApiConfigResponse().setting(body).status(ApiResult.Status.OK).result());
    }

        MavenStaxReader reader = new MavenStaxReader();

        // Find all pom.xml files, excluding those under src/ or target/
        Files.walk(rootDir)
                .filter(path -> path.getFileName().toString().equals("pom.xml"))
                .filter(path -> !containsSrcOrTarget(path))
                .forEach(pomPath -> {
                    try {
                        Model model = reader.read(Files.newInputStream(pomPath));

        final List<QualifiedVersion> earlierVersions = gitWrapper.listVersions(tagWildcard)
            // Only keep earlier versions, and if `currentVersion` is a prerelease, then only prereleases too.
            .filter(each -> each.isBefore(currentVersion) && (currentVersion.hasQualifier() == each.hasQualifier()))
            .sorted(naturalOrder())
            .collect(toList());

        if (earlierVersions.isEmpty()) {

        final Map<String, List<QueryBuilder>> geoMap = new HashMap<>();

        StreamUtil.stream(request.getParameterMap())
                .of(stream -> stream.filter(e -> e.getKey().startsWith("geo.") && e.getKey().endsWith(".point")).forEach(e -> {
                    final String key = e.getKey();
                    for (final String geoField : geoFields) {

    }

    /**
     * Displays a paginated list of web authentication configurations.
     *
     * @param pageNumber the page number to display (optional)
     * @param form the search form containing filter criteria
     * @return HTML response with the web authentication list
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })

labels.ldap_admin_security_principal=Bind DN
labels.ldap_admin_security_credentials=Password
labels.ldap_base_dn=Base DN
labels.ldapAccountFilter=Account Filter
labels.ldapGroupFilter=Group Filter
labels.ldapMemberofAttribute=memberOf Attribute
labels.ldap_account_filter=Account Filter
labels.ldap_group_filter=Group Filter
labels.ldap_memberof_attribute=memberOf Attribute
labels.notification_login=Login Page
labels.notification_search_top=Search Top Page