this.channels = new ConcurrentHashMap<>();
        this.localInterfaces = new ArrayList<>();
        this.remoteInterfaces = new ArrayList<>();
        this.scheduler = Executors.newScheduledThreadPool(2, r -> {
            Thread t = new Thread(r, "MultiChannelScheduler");
            t.setDaemon(true);
            return t;
        });
        this.loadBalancer = new ChannelLoadBalancer(this);

  public final FluentIterable<T> preOrderTraversal(T root) {
    checkNotNull(root);
    return new FluentIterable<T>() {
      @Override
      public UnmodifiableIterator<T> iterator() {
        return preOrderIterator(root);
      }
    };
  }

  UnmodifiableIterator<T> preOrderIterator(T root) {
    return new PreOrderIterator(root);
  }

  private final class PreOrderIterator extends UnmodifiableIterator<T> {

        Map<String, ToolchainFactory> factories = new HashMap<>();
        factories.put("basic", toolchainFactoryBasicType);
        factories.put("rare", toolchainFactoryRareType);

        when(lookup.lookupMap(ToolchainFactory.class)).thenReturn(factories);
        when(lookup.lookupMap(org.apache.maven.toolchain.ToolchainFactory.class))
                .thenReturn(Map.of());

        }

        @Test
        @DisplayName("Should create new instance with same config")
        void testMultipleInstancesWithSameConfig() throws SMBProtocolDecodingException {
            Smb2WriteResponse response1 = new Smb2WriteResponse(mockConfig);
            Smb2WriteResponse response2 = new Smb2WriteResponse(mockConfig);

            byte[] buffer1 = createValidWriteResponse(100, 50);

  @CanIgnoreReturnValue
  static int checkPositive(String role, int x) {
    if (x <= 0) {
      throw new IllegalArgumentException(role + " (" + x + ") must be > 0");
    }
    return x;
  }

  @CanIgnoreReturnValue
  static long checkPositive(String role, long x) {
    if (x <= 0) {
      throw new IllegalArgumentException(role + " (" + x + ") must be > 0");
    }
    return x;
  }

  @CanIgnoreReturnValue

    /**
     * Test constructor with raw bytes.
     */
    @Test
    public void testConstructorWithRawBytes() {
        byte[] rawBytes = new byte[8];
        SMBUtil.writeInt8(1234567890L, rawBytes, 0); // Example timestamp
        AvTimestamp avTimestamp = new AvTimestamp(rawBytes);

        assertNotNull(avTimestamp);
        assertEquals(AvPair.MsvAvTimestamp, avTimestamp.getType());

        ArtifactMetadataSource mds = new ArtifactMetadataSource() {
            @Override
            public ResolutionGroup retrieve(
                    Artifact artifact,
                    ArtifactRepository localRepository,
                    List<ArtifactRepository> remoteRepositories) {
                Set<Artifact> dependencies = new HashSet<>();

        int access = 0x01;
        IOException expectedException = new IOException("Network error");
        // Simulate IOException during RPC call
        doThrow(expectedException).when(mockDcerpcHandle).sendrecv(any(MsrpcSamrOpenDomain.class));

        // Act & Assert
        IOException thrown = assertThrows(IOException.class, () -> {
            new SamrDomainHandle(mockDcerpcHandle, mockPolicyHandle, access, mockSid);
        });

    assertEquals(6, (int) future.get());
  }

  public void testSameThreadScheduledExecutorWithException() throws InterruptedException {
    Runnable runnable =
        new Runnable() {
          @Override
          public void run() {
            throw new RuntimeException("Oh no!");
          }
        };

    Future<?> future = TestingExecutors.sameThreadScheduledExecutor().submit(runnable);

    assertEquals(6, (int) future.get());
  }

  public void testSameThreadScheduledExecutorWithException() throws InterruptedException {
    Runnable runnable =
        new Runnable() {
          @Override
          public void run() {
            throw new RuntimeException("Oh no!");
          }
        };

    Future<?> future = TestingExecutors.sameThreadScheduledExecutor().submit(runnable);