if (usingVarHandle != null) {
      return usingVarHandle;
    }

    try {
      /*
       * UnsafeByteArray uses Unsafe.getLong() in an unsupported way, which is known to cause
       * crashes on Android when running in 32-bit mode. For maximum safety, we shouldn't use
       * Unsafe.getLong() at all, but the performance benefit on x86_64 is too great to ignore, so

    }

    @Test
    @DisplayName("Should get long property with default value")
    void testGetLongWithDefault() {
        assertEquals(1234567890123L, Config.getLong(testProperties, "test.long", 0L));
        assertEquals(987654321L, Config.getLong(testProperties, "nonexistent.long", 987654321L));
    }

    @Test
    @DisplayName("Should get InetAddress property with default value")

      super(CHUNK_SIZE);
      this.h1 = seed;
      this.h2 = seed;
      this.length = 0;
    }

    @Override
    protected void process(ByteBuffer bb) {
      long k1 = bb.getLong();
      long k2 = bb.getLong();
      bmix64(k1, k2);
      length += CHUNK_SIZE;
    }

    private void bmix64(long k1, long k2) {
      h1 ^= mixK1(k1);

      h1 = Long.rotateLeft(h1, 27);
      h1 += h2;

        // The last 8 bytes are read as big-endian (network byte order for the high/low parts)
        ByteBuffer bb2 = ByteBuffer.wrap(bytes, 8, 8).order(java.nio.ByteOrder.BIG_ENDIAN);
        long data4 = bb2.getLong();

        // Construct UUID from components - Java UUID expects big-endian representation
        long mostSig = ((long) data1 << 32) | ((long) (data2 & 0xFFFF) << 16) | (data3 & 0xFFFF);
        long leastSig = data4;

      this.v0 ^= k0;
      this.v1 ^= k1;
      this.v2 ^= k0;
      this.v3 ^= k1;
    }

    @Override
    protected void process(ByteBuffer buffer) {
      b += CHUNK_SIZE;
      processM(buffer.getLong());
    }

    @Override
    protected void processRemaining(ByteBuffer buffer) {
      b += buffer.remaining();
      for (int i = 0; buffer.hasRemaining(); i += 8) {

        assertTrue(Modifier.isPrivate(serialVersionField.getModifiers()));
        serialVersionField.setAccessible(true);
        assertEquals(1L, serialVersionField.getLong(null));
    }

    /**
     * Test that all label constants follow the naming convention
     */
    public void test_labelConstantsNamingConvention() throws Exception {

        configMockedStatic = mockStatic(Config.class);
        lenient().when(Config.getBoolean("jcifs.smb1.smb.client.dfs.strictView", false)).thenReturn(false);
        lenient().when(Config.getLong("jcifs.smb1.smb.client.dfs.ttl", 300)).thenReturn(300L);
        lenient().when(Config.getBoolean("jcifs.smb1.smb.client.dfs.disabled", false)).thenReturn(false);
    }

    @AfterEach
    void tearDown() {

        int capability = bb.getInt();

        // Reserved (4 bytes) - skip
        bb.getInt();

        // LinkSpeed (8 bytes) - in bits per second
        long linkSpeedBps = bb.getLong();

        // Parse sockaddr structure (starts at offset + 24)
        InetAddress addr = parseSockaddr(data, offset + 24);

        if (addr == null) {
            return null;
        }

     * @param def the default value to return if key is not found or cannot be parsed
     * @return the long value of the property or the default value
     */
    public static long getLong(final Properties props, final String key, long def) {
        final String s = props.getProperty(key);
        if (s != null) {
            try {
                def = Long.parseLong(s);

        if (bytes.length != 16) {
            throw new IllegalArgumentException("GUID must be 16 bytes");
        }
        ByteBuffer bb = ByteBuffer.wrap(bytes);
        long mostSig = bb.getLong();
        long leastSig = bb.getLong();
        this.guid = new UUID(mostSig, leastSig);
    }
    
    public byte[] toBytes() {
        ByteBuffer bb = ByteBuffer.allocate(16);
        bb.putLong(guid.getMostSignificantBits());