public List<Long> getTimedOutSessions() {
    List<Long> ret = new ArrayList<>();
    synchronized (mSessions) {
      for (Entry<Long, SessionInfo> entry : mSessions.entrySet()) {
        if (entry.getValue().timeout()) {
          ret.add(entry.getKey());
        }
      }
    }
    return ret;
  }
public List < Long > getTimedOutSessions ( ) { List < Long > ret = new ArrayList < > ( ) ; synchronized ( mSessions ) { for ( Entry < Long , SessionInfo > entry : mSessions . entrySet ( ) ) { if ( entry . getValue ( ) . timeout ( ) ) { ret . add ( entry . getKey ( ) ) ; } } } return ret ; }
Gets the sessions that timed out.

@return the list of session ids of sessions that timed out