*/
    public String getTargetHost() {
        return this.targetHost;
    }

    /**
     * @return whether the session is in use
     */
    @Override
    public boolean isInUse() {
        return this.usageCount.get() > 0;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.SmbSession#unwrap(java.lang.Class)
     */
    @SuppressWarnings("unchecked")

            iter = this.sessions.listIterator();
            while (iter.hasNext()) {
                final SmbSessionImpl ssn = iter.next();
                if (ssn.getExpiration() != null && ssn.getExpiration() < now && !ssn.isInUse()) {
                    if (log.isDebugEnabled()) {
                        log.debug("Closing session after timeout " + ssn);
                    }
                    ssn.logoff(false, false);
                }