}
        return null;
    }

    /**
     *
     * Only call this method while holding a tree handle
     *
     * @param cap
     * @return whether the capability is available
     * @throws SmbException
     */
    public boolean hasCapability(final int cap) throws SmbException {
        try (SmbSessionImpl s = getSession()) {
            if (s != null) {

        assertTrue((testConfig.getFlags2() & SmbConstants.FLAGS2_UNICODE) != 0);
    }

    @Test
    @DisplayName("Test initDefaults with various capability combinations")
    void testInitDefaultsWithCapabilityCombinations() throws CIFSException {
        BaseConfiguration testConfig = new BaseConfiguration(false);
        testConfig.useNTSmbs = true;

        raf.setLength(100L);

        verify(tree, times(1)).send(any(Smb2SetInfoRequest.class), eq(RequestParam.NO_RETRY));
    }

    @Test
    @DisplayName("setLength(): NT SMBs capability uses Trans2SetFileInformation")
    void setLength_ntsmbs_usesTrans2() throws Exception {
        SmbRandomAccessFile raf = newInstance("rw", false, true, false);

        assertEquals("test data", new String(buffer));
    }
}

@Test
public void testPersistentHandleSurvivesReboot() throws Exception {
    // This test requires special setup with server reboot capability
    CIFSContext context = getTestContext();
    context.getConfig().setProperty("jcifs.smb.client.usePersistentHandles", "true");
    
    SmbFile file = new SmbFile("smb://server/share/persistent.txt", context);