Smb2NegotiateResponse r = null;
        byte[] negoReqBuffer = null;
        byte[] negoRespBuffer = null;
        try {
            smb2neg.setRequestCredits(Math.max(1, this.desiredCredits - this.credits.availablePermits()));

            final int reqLen = negotiateWrite(smb2neg, first != null);

if [[ "$TFCI_DOCKER_PULL_ENABLE" == 1 ]]; then
  # Simple retry logic for docker-pull errors. Sleeps if a pull fails.
  # Pulling an already-pulled container image will finish instantly, so
  # repeating the command costs nothing.
  docker pull "$TFCI_DOCKER_IMAGE" || sleep 15
  docker pull "$TFCI_DOCKER_IMAGE" || sleep 30
  docker pull "$TFCI_DOCKER_IMAGE" || sleep 60
  docker pull "$TFCI_DOCKER_IMAGE"
fi 

    }

    @Test
    @DisplayName("should handle null terminal gracefully")
    void shouldHandleNullTerminal() {
        // Should fall back to system default charset
        for (ConsoleIcon icon : ConsoleIcon.values()) {
            String result = icon.getIcon(null);
            assertNotNull(result, "Icon result should not be null for " + icon);

  private <T extends Iterator<E>> void internalExecuteAndCompare(
      T reference, T target, IteratorOperation method) {
    Object referenceReturnValue = null;
    PermittedMetaException referenceException = null;
    Object targetReturnValue = null;
    Exception targetException = null;

    try {
      targetReturnValue = method.execute(target);
    } catch (Exception e) { // sneaky checked exception
      targetException = e;

            assertNotNull(readRequest);
        }

        @Test
        @DisplayName("Should accept null file ID in constructor")
        void testConstructorWithNullFileId() {
            assertDoesNotThrow(() -> new Smb2ReadRequest(mockConfig, null, outputBuffer, 0));
        }

        @Test
        @DisplayName("Should accept empty file ID in constructor")

        if (buf == null) {
            return;
        }
        // better safe than sorry: prevent leaks if there is some out of bound access
        Arrays.fill(buf, (byte) 0);
        synchronized (this.cache) {
            if (this.freeBuffers < this.cache.length) {
                for (int i = 0; i < this.cache.length; i++) {
                    if (this.cache[i] == null) {
                        this.cache[i] = buf;

  /**
   * The reason why this stream was closed, or null if it closed normally or has not yet been
   * closed.
   *
   * If there are multiple reasons to abnormally close this stream (such as both peers closing it
   * near-simultaneously) then this is the first reason known to this peer.
   */
  internal var errorCode: ErrorCode? = null
    get() = withLock { field }

  private <T extends Iterator<E>> void internalExecuteAndCompare(
      T reference, T target, IteratorOperation method) {
    Object referenceReturnValue = null;
    PermittedMetaException referenceException = null;
    Object targetReturnValue = null;
    Exception targetException = null;

    try {
      targetReturnValue = method.execute(target);
    } catch (Exception e) { // sneaky checked exception
      targetException = e;

        // Intent: demonstrate defensive behavior with null when resolving this type by name
        assertThrows(NullPointerException.class, () -> Class.forName(null));
    }

    @Test
    @DisplayName("Happy path: class is loadable via fully qualified name")
    void testClassForName() throws Exception {
        // Act
        Class<?> c = Class.forName("jcifs.smb.SessionSetupHandler");

        // Assert

            assertArrayEquals(testSalt, Arrays.copyOfRange(buffer, 6, 14));
        }

        @Test
        @DisplayName("Should encode with null values")
        void testEncodeWithNullValues() {
            // Arrange
            context = new PreauthIntegrityNegotiateContext(mockConfig, null, null);
            byte[] buffer = new byte[100];

            // Act
            int encodedSize = context.encode(buffer, 0);