if (username != null) {
            AccountAttempts account = accountAttempts.computeIfAbsent(username, k -> new AccountAttempts());
            account.recordFailure();

            if (account.getFailedAttempts() >= maxAttemptsPerAccount) {
                account.lockOut(lockoutDuration);
                totalAccountsLocked.incrementAndGet();

            "Logon failure: account logon time restriction violation.", "Logon failure: user not allowed to log on to this computer.",
            "Logon failure: the specified account password has expired.", "Logon failure: account currently disabled.",
            "No mapping between account names and security IDs was done.", "The security ID structure is invalid.",

    /** Account control bit flag: Normal user account */
    public static final int ACB_NORMAL = 16;
    /** Account control bit flag: MNS logon user account */
    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: Normal user account */
    public static final int ACB_NORMAL = 16;
    /** Account control bit flag: MNS logon user account */
    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;

            "Logon failure: account logon time restriction violation.", "Logon failure: user not allowed to log on to this computer.",
            "Logon failure: the specified account password has expired.", "Logon failure: account currently disabled.",
            "No mapping between account names and security IDs was done.", "The security ID structure is invalid.",

        rateLimiter.recordFailure(username, ip);

        // After 3 failures, account should be locked
        try {
            rateLimiter.checkAttempt(username, ip);
            fail("Should throw SmbException for locked account");
        } catch (SmbException e) {
            assertTrue(e.getMessage().contains("locked out"), "Should indicate account lockout");
        }
    }

    @Test

     * been resolved and it is not a domain SID or builtin account,
     * the full DOMAIN\name form of the account will be
     * returned (e.g. MYDOM\alice or MYDOM\Domain Users).
     * If the SID has been resolved but it is is a domain SID,
     * only the domain name will be returned (e.g. MYDOM).
     * If the SID has been resolved but it is a builtin account,
     * only the name component will be returned (e.g. SYSTEM).

     * @return the extra SIDs array
     */
    public SID[] getExtraSids() {
        return this.extraSids;
    }

    /**
     * Returns the user account control flags.
     * @return the user account control value
     */
    public int getUserAccountControl() {
        return this.userAccountControl;
    }

    /**
     * Returns the user flags indicating PAC content.

        // Test unavailable SID type (type 6 - DELETED)
        assertNull(sambaHelper.getAccountId(createMockSID(6, "Deleted Account")));

        // Test unavailable SID type (type 7 - INVALID)
        assertNull(sambaHelper.getAccountId(createMockSID(7, "Invalid Account")));
    }

    public void test_getAccountId_smb1_basic() throws SmbException {

    } finally {
      notJar.delete();
    }
  }

  public void testGetClassPathEntry() throws MalformedURLException, URISyntaxException {
    if (isWindows()) {
      return; // TODO: b/136041958 - We need to account for drive letters in the path.
    }
    assertEquals(
        new File("/usr/test/dep.jar").toURI(),
        ClassPath.getClassPathEntry(new File("/home/build/outer.jar"), "file:/usr/test/dep.jar")