byte[] dataHmac = getHmac(dataChecksum, codeHmac);
        SecretKeySpec dataKey = new SecretKeySpec(dataHmac, KerberosConstants.RC4_ALGORITHM);

        cipher = Cipher.getInstance(KerberosConstants.RC4_ALGORITHM);
        cipher.init(Cipher.DECRYPT_MODE, dataKey);

        int plainDataLength = data.length - KerberosConstants.CHECKSUM_SIZE;

                ASN1Sequence sequence = ASN1Sequence.getInstance(tagged, true);
                Enumeration<ASN1Object> fields = sequence.getObjects();
                while ( fields.hasMoreElements() ) {
                    tagged = (ASN1TaggedObject) fields.nextElement();
                    switch ( tagged.getTagNo() ) {
                    case 0:
                        sequence = ASN1Sequence.getInstance(tagged, true);

    }


    private static void testJavaHMAC ( String key, byte[] bytes, String expect ) throws NoSuchAlgorithmException, InvalidKeyException {
        Mac m = Mac.getInstance("HmacMD5");
        m.init(new SecretKeySpec(Hex.decode(key), "HMAC"));
        byte[] mac = m.doFinal(bytes);
        checkBytes(Hex.decode(expect), mac);
    }


    @Test

 *
 */
@SuppressWarnings ( "javadoc" )
public class ContextConfigTest {

    private SingletonContext context;


    @Before
    public void setUp () {
        this.context = SingletonContext.getInstance();
    }


    @Test
    public void testSingletonInit () {
        assertNotNull(this.context.getBufferCache());
        assertNotNull(this.context.getNameServiceClient());

     * @throws MalformedURLException
     */
    @Deprecated
    public SmbFile ( URL url ) throws MalformedURLException {
        this(url, SingletonContext.getInstance().withCredentials(new NtlmPasswordAuthentication(SingletonContext.getInstance(), url.getUserInfo())));
    }


    /**
     * Constructs an SmbFile representing a resource on an SMB network such

    static final int DEFAULT_ATTR_EXPIRATION_PERIOD = 5000;

    static final int HASH_DOT     = ".".hashCode();
    static final int HASH_DOT_DOT = "..".hashCode();

    static LogStream log = LogStream.getInstance();
    static long attrExpirationPeriod;
    static boolean ignoreCopyToException;

    static {

        try {
            Class.forName( "jcifs.smb1.Config" );