private byte[] masterKey = null;
    private byte[] sessionKey = null;

    static {
        DEFAULT_FLAGS = NTLMSSP_NEGOTIATE_NTLM
                | (Config.getBoolean("jcifs.smb1.smb.client.useUnicode", true) ? NTLMSSP_NEGOTIATE_UNICODE : NTLMSSP_NEGOTIATE_OEM);
        DEFAULT_DOMAIN = Config.getProperty("jcifs.smb1.smb.client.domain", null);
        DEFAULT_USER = Config.getProperty("jcifs.smb1.smb.client.username", null);

     *
     * @return whether to failover to legacy transport on port 139
     */
    boolean isPort139FailoverEnabled();

    /**
     *
     * Property {@code jcifs.smb.client.useUnicode} (boolean, default true)
     *
     * @return whether to announce support for unicode
     */
    boolean isUseUnicode();

    /**
     *

            final Set<RequestParam> params) throws SmbException {
        ensureConnected(); /* must negotiate before we can test flags2, useUnicode, etc */
        if (this.smb2 && !(request instanceof ServerMessageBlock2)) {
            throw new SmbException("Not an SMB2 request " + request.getClass().getName());
        }

        assertEquals(0xFFFF, SmbConstants.DEFAULT_SND_BUF_SIZE);
        assertEquals(250, SmbConstants.DEFAULT_SSN_LIMIT);
        assertEquals(35000, SmbConstants.DEFAULT_CONN_TIMEOUT);
        // Note: USE_UNICODE and FORCE_UNICODE don't exist in the interface
        // These tests should be removed or replaced with actual constants
    }

    /**
     * Test individual FLAGS2 constants.
     */
    @Test