Align example-configs to naming changes of #852

[s-rwe]

A minor PR to have the example_configs make use of the updating naming, of #852

@dhoard for consideration

[dhoard]

@s-rwe Thanks for the PR!

I think this is a worthwhile change, but I'm concerned that a user will use an old JMX Exporter version with the new configuration files, which doesn't work.

I am working on integrating the new client_java 1.0.0 library, which could introduce some breaking changes around metrics names. If this is the case, I feel we should completely remove support for the configuration values whitelistObjectNames and blacklistObjectNames.