*
 * <p>This interface is intended for internal use.</p>
 */
public interface DfsResolver {

    /**
     * Checks if a domain is trusted for DFS operations
     * @param tf the CIFS context
     * @param domain the domain name to check
     * @return whether the given domain is trusted
     * @throws CIFSException if the operation fails
     */
    boolean isTrustedDomain(CIFSContext tf, String domain) throws CIFSException;

    /**
     * Cache of trusted domains for DFS resolution
     */
    protected CacheEntry _domains = null; /* aka trusted domains cache */
    /**
     * Cache of DFS referrals
     */
    protected CacheEntry referrals = null;

    /**
     * Gets the map of trusted domains for DFS resolution
     * @param auth the authentication credentials
     * @return a map of trusted domain names to domain controllers

    /** The SAM database does not have a computer account for this workstation trust relationship */
    int NT_STATUS_NO_TRUST_SAM_ACCOUNT = 0xC000018b;
    /** The trust relationship between the primary domain and the trusted domain failed */
    int NT_STATUS_TRUSTED_DOMAIN_FAILURE = 0xC000018c;
    /** The trust relationship between this workstation and the primary domain failed */

    int NT_STATUS_LOGON_TYPE_NOT_GRANTED = 0xC000015b;
    /** The SAM database does not have a computer account for this workstation trust relationship */
    int NT_STATUS_NO_TRUST_SAM_ACCOUNT = 0xC000018b;
    /** The trust relationship between the primary domain and the trusted domain failed */
    int NT_STATUS_TRUSTED_DOMAIN_FAILURE = 0xC000018c;
    /** The account used is a computer account */

        }

        final Set<FileEntry> set = new HashSet<>();

        if (tc.getDfs().isTrustedDomain(tc, locator.getServer())) {
            /*
             * The server name is actually the name of a trusted
             * domain. Add DFS roots to the list.
             */
            try {
                entries = doDfsRootEnum(tc, locator, locator.getAddress());
                for (final FileEntry e : entries) {

    private CacheEntry<Map<String, CacheEntry<DfsReferralDataInternal>>> _domains = null; /*
                                                                                           * aka trusted domains cache
                                                                                           */
    private final Object domainsLock = new Object();

    public static final int ACB_MNS = 32;
    /** Account control bit flag: Interdomain trust account */
    public static final int ACB_DOMTRUST = 64;
    /** Account control bit flag: Workstation trust account */
    public static final int ACB_WSTRUST = 128;
    /** Account control bit flag: Server trust account */
    public static final int ACB_SVRTRUST = 256;
    /** Account control bit flag: Password does not expire */

    public static final int ACB_MNS = 32;
    /** Account control bit flag: Interdomain trust account */
    public static final int ACB_DOMTRUST = 64;
    /** Account control bit flag: Workstation trust account */
    public static final int ACB_WSTRUST = 128;
    /** Account control bit flag: Server trust account */
    public static final int ACB_SVRTRUST = 256;
    /** Account control bit flag: Password does not expire */

   * that {@link #get} calls exactly the implementation of {@link AbstractFuture#get}.
   */
  abstract static class TrustedFuture<V extends @Nullable Object> extends FluentFuture<V>
      implements AbstractFuture.Trusted<V> {
    @CanIgnoreReturnValue
    @Override
    @ParametricNullness
    public final V get() throws InterruptedException, ExecutionException {
      return super.get();
    }

    @CanIgnoreReturnValue

        }

        map = new HashMap();

        if (dfs.isTrustedDomain(getServer(), auth)) {
            /* The server name is actually the name of a trusted
             * domain. Add DFS roots to the list.
             */
            try {
                entries = doDfsRootEnum();
                for (final FileEntry entry : entries) {