public T or(Supplier<? extends T> supplier) {
    return checkNotNull(
        supplier.get(), "use Optional.orNull() instead of a Supplier that returns null");
  }

  @Override
  public @Nullable T orNull() {
    return null;
  }

  @Override
  public Set<T> asSet() {
    return Collections.emptySet();
  }

  @Override
  public <V> Optional<V> transform(Function<? super T, V> function) {
    checkNotNull(function);

     */
    public static synchronized void addFirst(final Disposable disposable) {
        assertArgumentNotNull("disposable", disposable);
        disposables.addFirst(disposable);
    }

    /**
     * Unregisters a disposable resource.
     *
     * @param disposable
     *            A disposable resource. Must not be {@literal null}.
     */

     *
     * @param problems The problems that cause this exception, may be {@code null}.
     */
    public SettingsBuildingException(List<SettingsProblem> problems) {
        super(toMessage(problems));

        this.problems = new ArrayList<>();
        if (problems != null) {
            this.problems.addAll(problems);
        }
    }

    /**

        // enables no-arg constructor
    }

    /**
     * Creates a shallow copy of the specified repository request.
     *
     * @param repositoryRequest The repository request to copy from, must not be {@code null}.
     */
    public DefaultRepositoryRequest(RepositoryRequest repositoryRequest) {
        setLocalRepository(repositoryRequest.getLocalRepository());
        setRemoteRepositories(repositoryRequest.getRemoteRepositories());

    }

    public void ignoreMissingClasses(String... classesOrPackages) {
        if (classesOrPackages.length == 0) {
            missingClassExcludes = null;
            return;
        }
        if (missingClassExcludes == null) {
            missingClassExcludes = new TreeSet<>();
        }
        for (String each : classesOrPackages) {
            missingClassExcludes.add(each);
        }
    }

        }
      }.build()
  private var socksProxy: SocksProxy? = null
  private var cache: Cache? = null

  @BeforeEach
  fun setUp() {
    platform.assumeNotOpenJSSE()
    eventRecorder.forbidLock(get(client.connectionPool))
    eventRecorder.forbidLock(client.dispatcher)
  }

  @AfterEach
  fun tearDown() {
    if (socksProxy != null) {
      socksProxy!!.shutdown()
    }
    if (cache != null) {

    public void test_available_withEmptySsoType() {
        currentSsoType = "";
        assertTrue(ssoManager.available());
    }

    @Test
    public void test_available_withNullSsoType() {
        currentSsoType = null;
        assertTrue(ssoManager.available());
    }

    // Test getLoginCredential() method
    @Test
    public void test_getLoginCredential_whenNotAvailable() {
        currentSsoType = Constants.NONE;

        });
    }

    @Test
    public void testValidString() throws Exception {
        validator.validateString("normal string", 100, "test");
        validator.validateString(null, 100, "test"); // Null should be allowed
        // Should pass without exception
    }

    @Test
    public void testStringTooLong() throws Exception {
        String longString = "a".repeat(300);

     * {@code null} means use the model default, {@code 0} disables thinking.
     *
     * @return the thinking budget
     */
    public Integer getThinkingBudget() {
        return thinkingBudget;
    }

    /**
     * Sets the thinking budget for models that support thinking tokens.
     * {@code null} means use the model default, {@code 0} disables thinking.
     *

     */
    Class<?> getValueClassOfMap(int index);

    /**
     * Returns the element type if the return type of the method is a parameterized {@link Collection}.
     *
     * @return the element type if the return type of the method is a parameterized {@link Collection}, otherwise {@literal null}
     */
    Class<?> getElementClassOfCollection();