215     private final Map<String, Conference> mConferenceById = new ConcurrentHashMap<>();
216     private final Map<Conference, String> mIdByConference = new ConcurrentHashMap<>();
223     private Conference sNullConference;
1535     private final Conference.Listener mConferenceListener = new Conference.Listener() {
1537         public void onStateChanged(Conference conference, int oldState, int newState) {
1559         public void onDisconnected(Conference conference, DisconnectCause disconnectCause) {
1565         public void onConnectionAdded(Conference conference, Connection connection) {
1569         public void onConnectionRemoved(Conference conference, Connection connection) {
1574                 Conference conference, List<Connection> conferenceableConnections) {
1581         public void onDestroyed(Conference conference) {
1587                 Conference conference,
1597                 Conference conference,
1606         public void onVideoStateChanged(Conference c, int videoState) {
1613         public void onVideoProviderChanged(Conference c, Connection.VideoProvider videoProvider) {
1621         public void onStatusHintsChanged(Conference conference, StatusHints statusHints) {
1629         public void onExtrasChanged(Conference c, Bundle extras) {
1637         public void onExtrasRemoved(Conference c, List<String> keys) {
1645         public void onConferenceStateChanged(Conference c, boolean isConference) {
1653         public void onCallDirectionChanged(Conference c, int direction) {
1661         public void onAddressChanged(Conference c, Uri newAddress, int presentation) {
1669         public void onCallerDisplayNameChanged(Conference c, String callerDisplayName,
1678         public void onConnectionEvent(Conference c, String event, Bundle extras) {
1686         public void onRingbackRequested(Conference c, boolean ringback) {
1821         public void onConferenceChanged(Connection connection, Conference conference) {
1955         Conference conference = null;  in createConference()
1962             conference = Conference.createFailedConference(  in createConference()
2354         Conference conference2 = getNullConference();  in conference()
2367             Conference conference1 = findConferenceForAction(callId1, "addConnection");  in conference()
2405         Conference conference = connection.getConference();  in splitFromConference()
2413         Conference conference = findConferenceForAction(callId, "mergeConference");  in mergeConference()
2421         Conference conference = findConferenceForAction(callId, "swapConference");  in swapConference()
2683     public final void addConference(Conference conference) {  in addConference()
2777             @NonNull Connection connection, @NonNull Conference conference) {  in addExistingConnection()
2831     public final Collection<Conference> getAllConferences() {  in getAllConferences()
2863     public @Nullable Conference onCreateIncomingConference(  in onCreateIncomingConference()
2890     public void onCreateConferenceComplete(Conference conference) {  in onCreateConferenceComplete()
3038     public @Nullable Conference onCreateOutgoingConference(  in onCreateOutgoingConference()
3197     public void onConferenceAdded(Conference conference) {}  in onConferenceAdded()
3203     public void onConferenceRemoved(Conference conference) {}  in onConferenceRemoved()
3240     public boolean containsConference(Conference conference) {  in containsConference()
3313     private String addConferenceInternal(Conference conference) {  in addConferenceInternal()
3338     private void removeConference(Conference conference) {  in removeConference()
3366     private Conference findConferenceForAction(String conferenceId, String action) {  in findConferenceForAction()
3401             } else if (c instanceof Conference) {  in createIdList()
3402                 Conference conference = (Conference) c;  in createIdList()
3412     private Conference getNullConference() {  in getNullConference()
3414             sNullConference = new Conference(null) {};  in getNullConference()
3427         for (Conference conference : mIdByConference.keySet()) {  in endAllConnections()