/**
     * @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();
            }
            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())) {