return;
                }
                attempt++;
                if (allowUserInteraction && attempt < MAX_REDIRECTS) {
                    reconnect();
                } else {
                    break;
                }
            }
            throw new IOException("Unable to negotiate NTLM authentication.");
        } finally {
            cachedOutput = null;
        }

                    return;
                }
                attempt++;
                if ( this.allowUserInteraction && attempt < MAX_REDIRECTS ) {
                    reconnect();
                }
                else {
                    break;
                }
            }
            throw new IOException("Unable to negotiate NTLM authentication.");
        }
        finally {
            this.cachedOutput = null;