this.forceExtendedSecurity = Config.getBoolean(p, "jcifs.smb.client.forceExtendedSecurity", false);

        this.smb2OnlyNegotiation = Config.getBoolean(p, "jcifs.smb.client.useSMB2Negotiation", false);
        this.port139FailoverEnabled = Config.getBoolean(p, "jcifs.smb.client.port139.enabled", false);

        this.useNTSmbs = Config.getBoolean(p, "jcifs.smb.client.useNTSmbs", true);

            @Override
            public Map<String, String> mutate ( Map<String, String> cfg ) {
                cfg.put("jcifs.smb.client.minVersion", "SMB202");
                cfg.put("jcifs.smb.client.useSMB2Negotiation", "true");
                return cfg;
            }
        });

        MUTATIONS.put("smb30", new TestMutation() {

            @Override

     * @since 2.1
     */
    DialectVersion getMaximumVersion ();


    /**
     * Use SMB2 non-backward compatible negotiation style
     * 
     * Property <tt>jcifs.smb.client.useSMB2Negotiation</tt> (boolean, default false)
     * 
     * @return whether to use non-backward compatible protocol negotiation
     */
    boolean isUseSMB2OnlyNegotiation ();


    /**