CurlException exception = new CurlException(null);

        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void testConstructorWithNullMessageAndCause() {
        IOException cause = new IOException("IO error");
        CurlException exception = new CurlException(null, cause);

        assertNull(exception.getMessage());

    }

    /**
     * Checks if the request header is valid.
     * A header is considered valid if its name is not blank and its value is not null.
     * @return true if the header is valid, false otherwise.
     */
    public boolean isValid() {
        if (StringUtil.isBlank(name) || value == null) {
            return false;
        }

        return true;
    }

     * @param challenge the server challenge (may be null for some auth types)
     * @return authentication response data
     * @throws CIFSException if authentication fails
     */
    byte[] authenticate(CIFSContext context, byte[] challenge) throws CIFSException;

    /**
     * Gets the session key after successful authentication
     *
     * @return the session key or null if not available
     */
    byte[] getSessionKey();

        // Initialization should complete without errors
        assertNotNull(urlFilter);
    }

    /**
     * Test initialization with null session ID
     */
    public void test_init_withNullSessionId() {
        urlFilter.init(null);
        // Should handle null session ID gracefully
        assertNotNull(urlFilter);
    }

    /**
     * Test initialization with empty session ID
     */

            // Expected exception
            assertTrue(e.getMessage().contains("INVALID"));
        }
    }

    public void test_valueOf_null() {
        // Test valueOf with null throws exception
        try {
            SsoResponseType.valueOf(null);
            fail("Expected NullPointerException");
        } catch (NullPointerException e) {
            // Expected exception
        }
    }

    public void test_name() {

        for (String value : testValues) {
            String encoded = permissionHelper.encode(value);
            if (encoded != null) {
                String decoded = permissionHelper.decode(encoded);
                assertNotNull("Decoded value should not be null for: " + value, decoded);
                assertEquals("Decoded value should match original: " + value + " -> " + encoded + " -> " + decoded, value, decoded);

  public void testSetCount_removeNull_nullSupported() {
    initCollectionWithNullElement();
    assertSetCount(null, 0);
  }

  @CollectionFeature.Require(
      value = {SUPPORTS_ADD, ALLOWS_NULL_VALUES},
      absent = RESTRICTS_ELEMENTS)
  public void testSetCount_addNull_nullSupported() {
    assertSetCount(null, 1);
  }

  @CollectionFeature.Require(value = SUPPORTS_ADD, absent = ALLOWS_NULL_VALUES)

  }

  public void testExceptionThrown_whenCreatingCloseables() throws IOException {
    Closer closer = new Closer(suppressor);

    TestCloseable c1 = null;
    TestCloseable c2 = null;
    TestCloseable c3 = null;
    try {
      try {
        c1 = closer.register(TestCloseable.normal());
        c2 = closer.register(TestCloseable.normal());

   *
   * <p>Specifically, if any range in this range map contains the specified key, the value
   * associated with that range is returned.
   */
  @Nullable V get(K key);

  /**
   * Returns the range containing this key and its associated value, if such a range is present in
   * the range map, or {@code null} otherwise.
   */

    @Test
    void testService_NoAuthHeader_NoSession() throws ServletException, IOException {
        ntlmServlet.init(servletConfig);
        when(request.getHeader("Authorization")).thenReturn(null);
        when(request.getSession(false)).thenReturn(null);
        lenient().when(request.isSecure()).thenReturn(true);

        ntlmServlet.service(request, response);

        verify(response).setHeader("WWW-Authenticate", "NTLM");