// Handle potential multi-channel failure
                        if (isUseMultiChannel() && trans != this.transport) {
                            ChannelInfo channel = channelManager.getChannelForTransport(trans);
                            if (channel != null) {
                                channelManager.handleChannelFailure(channel, e);
                                // Retry with primary transport

				"application/vnd.uplanet.bearer-choice-wbxml",
				"application/vnd.uplanet.cacheop",
				"application/vnd.uplanet.cacheop-wbxml",
				"application/vnd.uplanet.channel",
				"application/vnd.uplanet.channel-wbxml",
				"application/vnd.uplanet.list",
				"application/vnd.uplanet.list-wbxml",
				"application/vnd.uplanet.listcmd",
				"application/vnd.uplanet.listcmd-wbxml",

            } else {
                logger.info("Group does not exist in LDAP server: name={}", group.getName());
            }
        });
    }

    /**
     * Changes the password for a user in the LDAP directory.
     *
     * <p>This method performs the following validations:
     * <ul>
     * <li>Checks if username and password are not blank</li>