private void updateUserList() {
List<String> usernames = new ArrayList<>();
for (Session s : session.getOpenSessions()) {
String uname = (String) s.getUserProperties().get(USERNAME_KEY);
usernames.add(uname);
}
this.endpointConfig.getUserProperties().put(USERNAMES_KEY, usernames);
}
public void resetTweets() {
tweets.removeAll(tweets);
}