&& ( tc.getConfig().getSessionLimit() == 0 || conn.getNumSessions() < tc.getConfig().getSessionLimit() ) ) {
                try {
                    if ( conn.isFailed() || ( connectedOnly && conn.isDisconnected() ) ) {
                        continue;
                    }

                    if ( forceSigning && !conn.isSigningEnforced() ) {

            if (entity instanceof EsAbstractEntity) {
                ((EsAbstractEntity) entity).asDocMeta().id(itemResponse.getId());
            }
            results[i] = itemResponse.isFailed() ? 0 : 1;
        }
        return results;
    }

    // to suppress xacceptUpdateColumnModifiedPropertiesIfNeeds()'s specify process
    @Override
    protected UpdateOption<CB> createPlainUpdateOption() {

        return this.state == 4 || this.state == 5 || this.state == 6 || this.state == 0;
    }


    /**
     * @return whether the transport is marked failed
     */
    public boolean isFailed () {
        return this.state == 5 || this.state == 6;
    }


    /**
     * Send a request message and recieve response
     * 
     * @param request
     * @param response

            if (entity instanceof EsAbstractEntity) {
                ((EsAbstractEntity) entity).asDocMeta().id(itemResponse.getId());
            }
            results[i] = itemResponse.isFailed() ? 0 : 1;
        }
        return results;
    }

    // to suppress xacceptUpdateColumnModifiedPropertiesIfNeeds()'s specify process
    @Override
    protected UpdateOption<CB> createPlainUpdateOption() {

        return !this.transport.isDisconnected() && this.connectionState.get() == 2;
    }


    /**
     * @return whether the session has been lost
     */
    public boolean isFailed () {
        return this.transport.isFailed();
    }

        Socket s = this.socket;
        return super.isDisconnected() || s == null || s.isClosed();
    }


    @Override
    public boolean isFailed () {
        Socket s = this.socket;
        return super.isFailed() || s == null || s.isClosed();
    }


    @Override
    public boolean hasCapability ( int cap ) throws SmbException {

            if (entity instanceof EsAbstractEntity) {
                ((EsAbstractEntity) entity).asDocMeta().id(itemResponse.getId());
            }
            results[i] = itemResponse.isFailed() ? 0 : 1;
        }
        return results;
    }

    // to suppress xacceptUpdateColumnModifiedPropertiesIfNeeds()'s specify process
    @Override
    protected UpdateOption<CB> createPlainUpdateOption() {

                    try ( SmbSessionImpl session = t.getSession() ) {
                        targetDomain = session.getTargetDomain();
                        if ( !session.isFailed() ) {
                            try ( SmbTransportImpl trans = session.getTransport();
                                  SmbTreeImpl ct = connectTree(loc, host, t.getShare(), trans, t, null) ) {

                if (requests.size() == items.length) {
                    for (int i = 0; i < requests.size(); i++) {
                        final BulkItemResponse resp = items[i];
                        if (resp.isFailed() && resp.getFailure() != null) {
                            final DocWriteRequest<?> req = requests.get(i);
                            final Failure failure = resp.getFailure();