this.tx_buf_size = Math.min(this.tx_buf_size, this.server.maxBufferSize);

        this.capabilities &= this.server.scapabilities;
        if ((this.server.scapabilities & SmbConstants.CAP_EXTENDED_SECURITY) == SmbConstants.CAP_EXTENDED_SECURITY) {
            this.capabilities |= SmbConstants.CAP_EXTENDED_SECURITY; // & doesn't copy high bit
        }

            // Verify each is a power of 2
            for (int cap : capabilities) {
                assertTrue(isPowerOfTwo(cap), "Capability 0x" + Integer.toHexString(cap) + " should be a power of 2");
            }

            // Verify no overlapping bits
            for (int i = 0; i < capabilities.length; i++) {
                for (int j = i + 1; j < capabilities.length; j++) {

    }

    /**
     * Gets the capabilities returned by the server.
     *
     * @return the server returned capabilities
     */
    public final int getCapabilities() {
        return this.capabilities;
    }

    /**
     * Gets the common capabilities negotiated between client and server.
     *
     * @return the common/negotiated capabilities
     */

        }
        snd_buf_size = Math.min(snd_buf_size, server.maxBufferSize);
        capabilities &= server.capabilities;
        if ((server.capabilities & CAP_EXTENDED_SECURITY) == CAP_EXTENDED_SECURITY) {
            capabilities |= CAP_EXTENDED_SECURITY; // & doesn't copy high bit
        }

        if ((capabilities & SmbConstants.CAP_UNICODE) == 0) {
            // server doesn't want unicode

    /** Default capabilities */
    int DEFAULT_CAPABILITIES =
            (USE_NTSMBS ? CAP_NT_SMBS : 0) | (USE_NTSTATUS ? CAP_STATUS32 : 0) | (USE_UNICODE ? CAP_UNICODE : 0) | CAP_DFS;
    /** FLAGS2 value */
    int FLAGS2 = Config.getInt("jcifs.smb1.smb.client.flags2", DEFAULT_FLAGS2);
    /** Capabilities value */

        // Given & When
        int securityMode = 0x03;
        int capabilities = 0x0F;
        long previousSessionId = 0xFEDCBA9876543210L;
        byte[] token = { 0x0A, 0x0B, 0x0C };

        Smb2SessionSetupRequest req = new Smb2SessionSetupRequest(mockContext, securityMode, capabilities, previousSessionId, token);

        // Then - verify fields are set correctly using reflection

    @Test
    @DisplayName("Should return capabilities")
    void testGetCapabilities() throws Exception {
        // Given
        setPrivateField(response, "capabilities", 0x7F);

        // When
        int caps = response.getCapabilities();

        // Then
        assertEquals(0x7F, caps);
    }

    @Test
    @DisplayName("Should return common capabilities")

        assertTrue((testConfig.getFlags2() & SmbConstants.FLAGS2_EXTENDED_ATTRIBUTES) != 0);

        // Check capabilities
        assertTrue(testConfig.getCapabilities() != 0, "Capabilities should be non-zero");

        // Check broadcast address
        assertNotNull(testConfig.getBroadcastAddress());

    @DisplayName("Should correctly identify DFS share based on capabilities")
    void testIsShareDfsWithCapabilities() throws SMBProtocolDecodingException {
        // Test with DFS capability
        byte[] buffer = createValidResponseBuffer(0, 0, 0x8, 0);
        response.readBytesWireFormat(buffer, 0);
        assertTrue(response.isShareDfs());

        // Test without DFS flags or capabilities

    void testDecodeValidBuffer() throws SMBProtocolDecodingException {
        // Prepare test data
        byte[] buffer = new byte[64];
        int bufferIndex = 10;

        // Set capabilities (4 bytes)
        int testCapabilities = 0x12345678;
        SMBUtil.writeInt4(testCapabilities, buffer, bufferIndex);

        // Set server GUID (16 bytes)
        byte[] testGuid = new byte[16];