NtlmChallenge chal = (NtlmChallenge) ssn.getAttribute("NtlmHttpChal");
                    if ( chal == null ) {
                        chal = getChallengeForDomain(this.defaultDomain);
                        ssn.setAttribute("NtlmHttpChal", chal);
                    }
                    dc = chal.dc;
                    challenge = chal.challenge;
                }
                else {

                    NtlmChallenge chal = (NtlmChallenge)ssn.getAttribute( "NtlmHttpChal" );
                    if( chal == null ) {
                        chal = SmbSession.getChallengeForDomain();
                        ssn.setAttribute( "NtlmHttpChal", chal );
                    }
                    dc = chal.dc;
                    challenge = chal.challenge;
                } else {

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