I am trying to add a MongoDB JMXConnectionPoolListener to my MongoClient via Spring's MongoClientFactoryBean. However the factory bean ignores the listener.

Code looks like this:

    MongoClientSettings settings = MongoClientSettings.builder().applyToConnectionPoolSettings(s -> s.addConnectionPoolListener(new JMXConnectionPoolListener())).build();
    MongoClientFactoryBean factoryBean = new MongoClientFactoryBean();
    factoryBean.setMongoClientSettings(settings);

Using the debugger, I can see that the listener gets added to the settings object that I create. However when the factory bean actually goes to create the MongoClient, a method called computeClientSettings is called. That method creates a new MongoClientSettings.Builder and copies over some of my settings, but not the connection pool listener.

There is something like a copy constructor in MongoClientSettings.Builder, but the factory bean does not use it.

Is there a way to make the factory bean preserve the connection pool listener? I know I can do MongoClients.create(settings), but I would like to have Spring's exception translation also.