private final ReferenceQueue<Object> queue;

  // By preference, we will use the Thread constructor that has an `inheritThreadLocals` parameter.
  // But before Java 9, our only way not to inherit ThreadLocals is to zap them after the thread
  // is created, by accessing a private field.
  private static final @Nullable Constructor<Thread> bigThreadConstructor =
      getBigThreadConstructor();

     */
    public static class uuid_t extends NdrObject {

        /**
         * Default constructor for uuid_t.
         */
        public uuid_t() {
            // Default constructor
        }

        /** The low field of the timestamp */
        public int time_low;
        /** The middle field of the timestamp */
        public short time_mid;

    void testConstructor() {
        // Verify that the id and attributes are correctly set by the constructor
        assertEquals(sidMock, pacSidAttributes.getId(), "The SID should match the one provided in the constructor.");
        assertEquals(attributes, pacSidAttributes.getAttributes(), "The attributes should match the ones provided in the constructor.");
    }

    /**
     * Test method for {@link jcifs.pac.PacSidAttributes#getId()}.
     */

        // Test constructor with null cause
        final JobProcessingException exception = new JobProcessingException((Throwable) null);

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

    public void test_constructor_withNullMessageAndCause() {
        // Test constructor with null message and cause

    public void test_constructorWithNullMessage() {
        // Test constructor with null message
        ThumbnailGenerationException exception = new ThumbnailGenerationException(null);

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

    public void test_constructorWithNullMessageAndCause() {
        // Test constructor with null message and null cause

        byte[] raw = new byte[] { 0x01, 0x02, 0x03, 0x04 };
        AvPair avPair = new AvPair(type, raw);

        assertEquals(type, avPair.getType(), "Type should match the constructor argument.");
        assertArrayEquals(raw, avPair.getRaw(), "Raw data should match the constructor argument.");

        // Test with another type and empty raw data
        int type2 = AvPair.MsvAvEOL;
        byte[] raw2 = new byte[] {};

    // Creates a minimal valid CIFS context that does not perform I/O by itself
    private CIFSContext ctx() {
        return SingletonContext.getInstance();
    }

    @Nested
    @DisplayName("Constructor behavior")
    class ConstructorTests {

        @ParameterizedTest
        @DisplayName("Accepts IPC$ URLs (happy path)")
        @ValueSource(strings = { "smb://server/IPC$/foo", "smb://server/IPC$/PIPE/foo" })

    @MethodSource("messages")
    @DisplayName("Message constructor preserves provided messages, including null/edge cases")
    void messageConstructor_preservesMessage(String msg) {
        // Arrange & Act
        SmbUnsupportedOperationException ex = new SmbUnsupportedOperationException(msg);

        // Assert
        assertEquals(msg, ex.getMessage(), "Constructor should preserve the provided message (including null)");

            HMACT64 hmac = new HMACT64(TEST_KEY);
            hmac.engineReset();
            verify(mockMd5, times(2)).reset(); // Once in constructor, once in reset
            verify(mockMd5, times(2)).update(any(byte[].class)); // Once in constructor, once in reset
        }
    }

    @Test
    void testEngineGetDigestLength() throws NoSuchAlgorithmException {
        // Test engineGetDigestLength()

     */
    @Test
    void testConstructor() {
        // Verify that the constructor correctly sets the id and attributes
        assertEquals(mockSid, pacGroup.getId(), "The SID should be correctly set in the constructor.");
        assertEquals(attributes, pacGroup.getAttributes(), "The attributes should be correctly set in the constructor.");
    }

    /**
     * Test method for {@link jcifs.pac.PacGroup#getId()}.
     */