assertFalse(options.plugins().isPresent(), "--plugins should not be present by default");
        assertFalse(options.all().isPresent(), "--all should not be present by default");
        assertFalse(options.infer().isPresent(), "--infer should not be present by default");
        assertFalse(options.model().isPresent(), "--fix-model should not be present by default");

    assertThat(Enums.getIfPresent(TestEnum.class, "POODLE")).hasValue(TestEnum.POODLE);

    assertThat(Enums.getIfPresent(TestEnum.class, "CHEETO")).isPresent();
    assertThat(Enums.getIfPresent(TestEnum.class, "HONDA")).isPresent();
    assertThat(Enums.getIfPresent(TestEnum.class, "POODLE")).isPresent();

    assertThat(Enums.getIfPresent(TestEnum.class, "CHEETO")).hasValue(TestEnum.CHEETO);

        context.indent();

        if (options.all().orElse(false)) {
            context.info("all: true (applying all available upgrades)");
        }

        if (options.modelVersion().isPresent()) {
            context.info("modelVersion: " + options.modelVersion().get());
        }

        if (options.plugins().orElse(false)) {
            context.info("plugins: true");
        }

        if (context.options().help().isPresent()) {
            Consumer<String> writer = determineWriter(context);
            context.options().displayHelp(context.invokerRequest.parserRequest(), writer);
            throw new InvokerException.ExitException(0);
        }
        if (context.options().showVersionAndExit().isPresent()) {
            showVersion(context);

        // CLI args
        MavenOptions cliOptions = parseMavenCliOptions(context.parserRequest.args());
        result.add(cliOptions);
        // atFile option
        if (cliOptions.atFile().isPresent()) {
            Path file = context.cwd.resolve(cliOptions.atFile().orElseThrow());
            if (Files.isRegularFile(file)) {
                result.add(parseMavenAtFileOptions(file));
            } else {

  }

  public void testIsPresent_no() {
    assertFalse(Optional.absent().isPresent());
  }

  @SuppressWarnings("OptionalOfRedundantMethod") // Unit tests for Optional
  public void testIsPresent_yes() {
    assertTrue(Optional.of("training").isPresent());
  }

  public void testGet_absent() {
    Optional<String> optional = Optional.absent();

        boolean useAll = options.all().orElse(false);
        if (useAll) {
            return true;
        }

        // Check specific option
        if (specificOption.isPresent()) {
            return specificOption.get();
        }

        // Apply default behavior when no specific options are provided
        if (defaultWhenNoOptionsSpecified
                && options.infer().isEmpty()

        public String testDoUpgradeLogic(UpgradeContext context, String expectedTargetModel) {
            UpgradeOptions options = context.options();
            if (options.modelVersion().isPresent()) {
                return options.modelVersion().get();
            } else if (options.all().orElse(false)) {
                return "4.1.0";
            } else {
                return "4.0.0";
            }

        final VaErrorHook toIndexPage = () -> {
            form.clearSecurityInfo();
            return asIndexHtml();
        };
        validatePasswordForm(form, toIndexPage);
        if (!getUserBean().isPresent()) {
            logger.warn("User session not found during password change");
            return redirect(LoginAction.class);
        }
        final String username = getUserBean().get().getUserId();
        try {

   * otherwise returns an empty stream.
   */
  public static <T> Stream<T> stream(com.google.common.base.Optional<T> optional) {
    return optional.isPresent() ? Stream.of(optional.get()) : Stream.empty();
  }

  /**
   * If a value is present in {@code optional}, returns a stream containing only that element,
   * otherwise returns an empty stream.
   *