ciphers.add(EncryptionNegotiateContext.CIPHER_AES128_GCM);
                ciphers.add(EncryptionNegotiateContext.CIPHER_AES128_CCM);

                int[] cipherArray = ciphers.stream().mapToInt(Integer::intValue).toArray();
                negoContexts.add(new EncryptionNegotiateContext(config, cipherArray));
            }

            // Add compression context for SMB3 compression support

     *
     * @return channel statistics
     */
    public ChannelStatistics getStatistics() {
        return new ChannelStatistics(sessionChannels.size(),
                sessionChannels.values().stream().mapToInt(ChannelGroup::getChannelCount).sum(), totalRequests.get(),
                totalChannelsCreated.get());
    }

    /**
     * Channel statistics.
     */
    public static class ChannelStatistics {

        if (spaceChars == null) {
            if (spaceStr.startsWith("u")) {
                spaceChars = split(spaceStr, "u")
                        .get(stream -> stream.filter(StringUtil::isNotBlank).mapToInt(s -> Integer.parseInt(s, 16)).toArray());
            } else {
                // backward compatibility
                final int length = spaceStr.length();
                spaceChars = new int[length];

            .orElseThrow();
    }
    
    private ChannelInfo selectWeightedRandom(Collection<ChannelInfo> channels) {
        // Calculate total weight
        int totalWeight = channels.stream()
            .mapToInt(ChannelInfo::getScore)
            .sum();
        
        if (totalWeight == 0) {
            // All channels have zero score, pick randomly
            List<ChannelInfo> list = new ArrayList<>(channels);