assertEquals(null, storedFileId);
    }

    @Test
    @DisplayName("setCloseFlags should update close flags")
    void testSetCloseFlags() throws Exception {
        int testFlags = 0x00000001; // SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB
        request.setCloseFlags(testFlags);

        Field closeFlagsField = Smb2CloseRequest.class.getDeclaredField("closeFlags");
        closeFlagsField.setAccessible(true);

        this.value = value;
    }
}
```

### 3.2 Handle Capabilities
```java
public class Smb2HandleCapabilities {
    // Durable handle flags
    public static final int SMB2_DHANDLE_FLAG_PERSISTENT = 0x00000002;
    
    // Timeout values (milliseconds)
    public static final long DEFAULT_DURABLE_TIMEOUT = 120000;  // 2 minutes
    public static final long MAX_DURABLE_TIMEOUT = 300000;      // 5 minutes

    int flags2 = FLAGS2;
    int maxMpxCount = MAX_MPX_COUNT;
    int snd_buf_size = SND_BUF_SIZE;
    int rcv_buf_size = RCV_BUF_SIZE;
    int capabilities = CAPABILITIES;
    int sessionKey = 0x00000000;
    boolean useUnicode = USE_UNICODE;
    String tconHostName = null;

    SmbTransport(final UniAddress address, final int port, final InetAddress localAddr, final int localPort) {
        this.address = address;

                handle = DcerpcHandle.getHandle("ncacn_np:" + server + "[\\PIPE\\lsarpc]", auth);
                // NetApp doesn't like the 'generic' access mask values
                policyHandle = new LsaPolicyHandle(handle, null, 0x00000001);
                rpc = new MsrpcQueryInformationPolicy(policyHandle, (short) lsarpc.POLICY_INFO_ACCOUNT_DOMAIN, info);
                handle.sendrecv(rpc);
                if (rpc.retval != 0) {