wildfly : Whitelist objects for performance reason (#284)
wildfly : Whitelist objects for performance reason (#284)

see https://github.com/prometheus/jmx_exporter/issues/246#issuecomment-367573931
With this patch, the scrape time (`jmx_scrape_duration_seconds`) dropped from 15 seconds to 0.9s. (using with jmx_explorer 0.7)

I can therefore avoid increasing  `scrape_timeout` and `scrape_interval`.

Signed-off-by: Frank Lin Piat <229b4055c7d71c4148dbf97afd1191c8dfd6e9e5@klabs.be>
prometheus/jmx_exporter,prometheus/jmx_exporter