public RoutingTable getRoutingTable(String name) {
        Map<String, RoutingTable> tables = tablesRef.get();
        if (tables == null) {
            return null;
        }
        return tables.get(name);
    }
<p>Returns a named routing table, may return null.</p>

@param name The name of the routing table to return.
@return The routing table object.
messagebus/src/main/java/com/yahoo/messagebus/MessageBus.java