public List<Session> getSessions() throws IOException {
List<Session> res = null;
{
synchronized (lookupSessionById) {
Collection<AbstractSession> values = lookupSessionById.values();
if (values != null) {
res = new ArrayList<Session>();
for (AbstractSession session : values) {
expandSession(session);
}
res.addAll(values);
}
}
}
return res;
}
