pdis = createInputStream(nullData);
        assertNull(pdis.readFiletime());
    }

    @Test
    public void testReadUnicodeString() throws IOException, PACDecodingException {
        // length=4, maxLength=4, pointer=0x1234
        byte[] data = new byte[] { 0x04, 0x00, 0x04, 0x00, 0x34, 0x12, 0x00, 0x00 };
        PacDataInputStream pdis = createInputStream(data);

            int idx = 0;
            if (idx < tok.length) {
                majorVersion = getNextIntegerToken(tok[idx++]);
                if (majorVersion == null) {
                    fallback = true;
                }
            } else {
                fallback = true;
            }
            if (idx < tok.length) {
                minorVersion = getNextIntegerToken(tok[idx++]);

      return dummy;
    }

    abstract List<StackTraceElement> getStackTrace(Throwable t);
  }

  @BeforeExperiment
  public void doBefore() {
    recursionCount = stackDepth - new Throwable().getStackTrace().length - 1;
    if (recursionCount < 0) {
      throw new SkipThisScenarioException();
    }
  }

  @Benchmark
  public boolean timeFindCaller(int reps) {
    return timeFindCaller(reps, recursionCount);
  }

      return dummy;
    }

    abstract List<StackTraceElement> getStackTrace(Throwable t);
  }

  @BeforeExperiment
  public void doBefore() {
    recursionCount = stackDepth - new Throwable().getStackTrace().length - 1;
    if (recursionCount < 0) {
      throw new SkipThisScenarioException();
    }
  }

  @Benchmark
  public boolean timeFindCaller(int reps) {
    return timeFindCaller(reps, recursionCount);
  }

            assertTrue(result.startsWith("NtlmChallenge[challenge=0x"));
            assertTrue(result.endsWith(",dc=SERVER123]"));

            // Hexdump.toHexString with size = length * 2 produces 8 uppercase hex chars
            // The hex should be "010203FF"
            assertTrue(result.contains("010203FF"));
        }

        @Test
        @DisplayName("toString with empty challenge array")

        super(domain, username, (String) null, AuthenticationType.USER);
        if (passwordHash == null || passwordHash.length != 16) {
            throw new IllegalArgumentException("Password hash must be provided, expected length 16 byte");
        }
        this.ntHash = passwordHash;
    }

    /**
     * Create username/password credentials with specified domain
     *

  private static boolean isLongTimeUnitBased(Method method) {
    Class<?>[] parameterTypes = method.getParameterTypes();
    return parameterTypes.length >= 2
        && parameterTypes[parameterTypes.length - 2] == long.class
        && parameterTypes[parameterTypes.length - 1] == TimeUnit.class;
  }

  /** Determines whether the given method takes a Duration as its last parameter. */

	FlagStateless

	// FlagPayloadIsErr can be used by individual ops to signify that
	// The payload is a string error converted to byte slice.
	FlagPayloadIsErr

	// FlagPayloadIsZero means that payload is 0-length slice and not nil.
	FlagPayloadIsZero

	// FlagSubroute indicates that the message has subroute.
	// Subroute will be 32 bytes long and added before any CRC.
	FlagSubroute
)

        System.arraycopy(mac, 0, ret, 0, mac.length);
        System.arraycopy(clientData, 0, ret, mac.length, clientData.length);
        return ret;
    }

    /**
     * Generates the NTOWFv2 hash for the given domain, username, and password.
     *
     * @param domain the authentication domain
     * @param username the username
     * @param password the password
     *

            final int length) throws CIFSException {
        final ArrayList<SID> list = new ArrayList<>(sids.length);
        int si;

        synchronized (this.sidCache) {
            for (si = 0; si < length; si++) {
                final SID s = sids[offset + si].unwrap(SID.class);
                final SID sid = this.sidCache.get(s);