}

        if (s == null) {
            return this.credentials.createContext(getContext(), tdomain, host, negoResp.getSecurityBlob(), doSigning);
        }

        try {
            final String hostName = host;
            return Subject.doAs(s, (PrivilegedExceptionAction<SSPContext>) () -> getCredentials().createContext(getContext(), tdomain,
                    hostName, negoResp.getSecurityBlob(), doSigning));

        // Use separate contexts for different operations
        CIFSContext createContext = createFreshContext();
        String sourceFileName = "source_" + timestamp + ".txt";
        String targetFileName = "target_" + timestamp + ".txt";

        SmbFile sourceFile = new SmbFile(baseUrl + "shared/" + sourceFileName, createContext);

        // Create source file with content