* @param tf
     * @param tdom
     * @param thost
     * @return
     */
    protected boolean matches ( CIFSContext tf, String thost, String tdom ) {
        return Objects.equals(this.getCredentials(), tf.getCredentials()) && Objects.equals(this.targetHost, thost)
                && Objects.equals(this.targetDomain, tdom);
    }

                }
                return ssn.acquire();
            }
            else if ( log.isTraceEnabled() ) {
                log.trace("Existing session " + ssn + " does not match " + tf.getCredentials());
            }
        }

        /* logoff old sessions */
        if ( tf.getConfig().getSessionTimeout() > 0 && this.sessionExpiration < ( now = System.currentTimeMillis() ) ) {