ConnectionStateManager.java

// change to checkSessionExpiration()

else if ( currentConnectionState == ConnectionState.LOST )
{
    try
    {
        if ( client.getZookeeperClient().isConnected() )
        {
            log.warn("ConnectionState is LOST but isConnected() is true. Resetting connection.");
            client.getZookeeperClient().reset();
        }
        else
        {
            // give ConnectionState.checkTimeouts() a chance to run, reset ensemble providers, etc.
            client.getZookeeperClient().getZooKeeper();
        }
    }
    catch ( Exception e )
    {
        log.error("Could not get ZooKeeper", e);
    }
}