@NonNull
    public final synchronized ChronosListener getListener(final int id) {
        ChronosListener chronosListener = mListeners.get(id);
        if (chronosListener == null) {
            chronosListener = new ChronosListener(id);
            mListeners.put(id, chronosListener);
        }
        return chronosListener;
    }
@NonNull
    public final synchronized ChronosListener getListener(final int id) {
        ChronosListener chronosListener = mListeners.get(id);
        if (chronosListener == null) {
            chronosListener = new ChronosListener(id);
            mListeners.put(id, chronosListener);
        }
        return chronosListener;
    }
@ NonNull public final synchronized ChronosListener getListener ( final int id ) { ChronosListener chronosListener = mListeners . get ( id ) ; if ( chronosListener == null ) { chronosListener = new ChronosListener ( id ) ; mListeners . put ( id , chronosListener ) ; } return chronosListener ; }
Gets previously created ServiceConnector by its id.

@param id an id of the saved ServiceConnector
@return a restored ServiceConnector, or a new one, if there is no saved instance with a given
id
@see {@link ChronosListener#getId()}
@see #createListener()
Gets previously created ServiceConnector by its id .