LoginContext lc;

            Subject ps = super.getSubject();

            if (this.configuration != null) {
                lc = new LoginContext(this.serviceName, ps, this, this.configuration);
            } else if (ps != null) {
                lc = new LoginContext(this.serviceName, ps, this);
            } else {
                lc = new LoginContext(this.serviceName, this);
            }

     * @throws LoginException if authentication fails
     */
    public KerberosCredentials(String loginContextName) throws LoginException {
        LoginContext lc = new LoginContext(loginContextName);
        lc.login();
        this.subject = lc.getSubject();
    }

    /**
     * Retrieves all Kerberos keys from the authenticated subject.
     *
     * @return array of KerberosKey objects
     */

09F01"],["GR",27,"F03F04A16"],["GT",28,"A04A20"],["HR",21,"F07F10"],["HU",28,"F03F04F01F15F01"],["IE",22,"U04F06F08"],["IL",23,"F03F03F13"],["IS",26,"F04F02F06F10"],["IT",27,"U01F05F05A12"],["KW",30,"U04A22"],["KZ",20,"F03A13"],["LB",28,"F04A20"],["LC",32,"U04F24"],["LI",21,"F05A12"],["LT",20,"F05F11"],["LU",20,"F03A13"],["LV",21,"U04A13"],["MC",27,"F05F05A11F02"],["MD",24,"U02A18"],["ME",22,"F03F13F02"],["MK",19,"F03A10F02"],["MR",27,"F05F05F11F02"],["MT",31,"U04F05A18"],["MU",30,"U04F02F02F12F...