if ( sae.getNtStatus() == NtStatus.NT_STATUS_ACCESS_VIOLATION ) {
                    /*
                     * Server challenge no longer valid for
                     * externally supplied password hashes.
                     */
                    HttpSession ssn = req.getSession(false);
                    if ( ssn != null ) {

 * specified by the <tt>UniAddress</tt> parameter. If the credentials are
 * not accepted, an <tt>SmbAuthException</tt> will be thrown. If an error
 * occurs an <tt>SmbException</tt> will be thrown. If the credentials are
 * valid, the method will return without throwing an exception. See the
 * last <a href="../../../faq.html">FAQ</a> question.
 * <p>
 * See also the <tt>jcifs.smb1.smb1.client.logonShare</tt> property.
 */

                            ": " + sae );
                }
                if( sae.getNtStatus() == sae.NT_STATUS_ACCESS_VIOLATION ) {
                    /* Server challenge no longer valid for
                     * externally supplied password hashes.
                     */
                    HttpSession ssn = req.getSession(false);
                    if (ssn != null) {

                return new SmbTreeHandleImpl(loc, this);
            }

            return connectHost(loc, loc.getServerWithDfs());
        }

    }


    /**
     * @return whether we have a valid tree connection
     */
    @SuppressWarnings ( "resource" )
    public synchronized boolean isConnected () {
        SmbTreeImpl t = getTreeInternal();
        return t != null && t.isConnected();
    }

        }
        catch ( TransportException e ) {
            cleanupThread(timeout);
            throw e;
        }
        finally {
            /*
             * This guarantees that we leave in a valid state
             */
            st = this.state;
            if ( st != 0 && st != 3 && st != 4 && st != 5 && st != 6 ) {
                log.error("Invalid state: " + st);
                this.state = 6;

            }
        }
        if ( rpc == null ) {
            return false;
        }

        boolean valid = false;
        for ( int hash : rpc.getHashAlgos() ) {
            if ( hash == pc.getHashAlgos()[ 0 ] ) {
                valid = true;
            }
        }
        if ( !valid ) {
            log.error("Server returned invalid hash selection");
            return false;
        }

        long start = System.currentTimeMillis() / 1000 * 1000;
        // this is not too great as it depends on timing/clockskew
        // first we need to obtain a ticket, therefor need valid credentials
        // then we need to wait until the ticket is expired
        int wait = 10 * 1000;
        long princExp = start + ( wait / 2 );

                ssn.removeAttribute("npa-" + server);
            }
            if ( sae.getNtStatus() == NtStatus.NT_STATUS_ACCESS_VIOLATION ) {
                /*
                 * Server challenge no longer valid for
                 * externally supplied password hashes.
                 */
                resp.sendRedirect(req.getRequestURL().toString());
                return;
            }

            if( ssn != null ) {
                ssn.removeAttribute( "npa-" + server );
            }
            if( sae.getNtStatus() == sae.NT_STATUS_ACCESS_VIOLATION ) {
                /* Server challenge no longer valid for
                 * externally supplied password hashes.
                 */
                resp.sendRedirect( req.getRequestURL().toString() );
                return;
            }

     * only to a server, this method determines if the server exists on the
     * network and is advertising SMB services. If this resource refers to
     * a workgroup, this method determines if the workgroup name is valid on
     * the local SMB network. If this <code>SmbResource</code> refers to the root
     * <code>smb://</code> resource <code>true</code> is always returned. If