} catch (Exception e) {
            log.warn("Failed to establish replacement channel", e);
        }
    }

    /**
     * Create transport for given interfaces
     *
     * @param localInterface local interface
     * @param remoteInterface remote interface
     * @return created transport
     * @throws IOException if transport creation fails
     */

                    File file = new File(fileString);
                    return !file.exists();
                }
            } catch (InterpolationException e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to interpolate missing file location for profile activator: " + fileString, e);
                } else {

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *

            // We expect this to fail, but it should be a CIFSException, not a NullPointerException
            assertTrue(e.getCause() instanceof CIFSException);
            assertTrue(e.getCause().getMessage().contains("Failed to create multi-channel transport"));
        }
    }

    @Test
    @DisplayName("MultiChannelManager should shutdown cleanly")
    void testShutdown() {
        assertDoesNotThrow(() -> {

            "More data is available.", "Access is denied.", "The data area passed to a system call is too small.",
            "The filename, directory name, or volume label syntax is incorrect.", "The system cannot find the file specified.",

        // suppress logging because it can be caught by logging filter
        //log.error("Failed to parse multipart request", e);
        throw new ServletException("Failed to upload the file.", e);
    }

    // ===================================================================================

    static {
        try {
            NTLMSSP_OID = new ASN1ObjectIdentifier("1.3.6.1.4.1.311.2.2.10");
        } catch (final IllegalArgumentException e) {
            log.error("Failed to parse OID", e);
        }
    }

    private final NtlmPasswordAuthenticator auth;
    private int ntlmsspFlags;
    private final String workstation;
    private boolean isEstablished = false;

        } else {
            log.error("Preauth integrity validation FAILED for session {}", sessionId);
            context.invalidate();
            if (enforceIntegrity) {
                throw new CIFSException("Preauth integrity validation failed - possible downgrade attack detected");
            }
        }

        return isValid;
    }

    /**

        final String errorDetail = "Authentication failed";
        final VaMessenger<FessMessages> complexMessageCode =
                messages -> messages.addErrorsFailedToProcessSsoRequest(UserMessages.GLOBAL_PROPERTY_KEY, errorDetail);
        final String message = "SSO processing failed";

        // Execute

            TransportException exception = new TransportException("Transport failed", rootCause);

            String result = exception.toString();

            assertNotNull(result);
            assertTrue(result.contains("Transport failed"));
            assertTrue(result.contains("IllegalStateException"));
            assertTrue(result.contains("Outer exception"));