Finagle Prometheus Versions Save

• #40: Bump Finagle depdencency to version 19.4.0
• #41: Always use a JavaTimer

• Upgrade to sbt v1.1.1, and bump the version of dependencies that also needed upgrading as a result.
• Upgrade the Finagle dependency to 18.8.0.
• Switch to using a HashedWheelTimer, instead of using the CustomDefaultTimer, which called DefaultTimer.getInstance, which in turn could throw a NullPointerException.
• Improve the race condition testing for PrometheusStatsReceiver.

• #29: Fixes an issue where DefaultTimer threw a NullPointerException.

• #24: Fixes a race condition that happened when multiple threads created the same counter.

• #22: Stats are cached properly instead of being looked up constantly.
• #22: Update gauge values at a set interval.
• #23: Fix an issue with the order in which gauges are initialised.

Thanks to @spockz for all of these improvements.

• Fixed a bug where the PrometheusStatsReceiver could not be successfully used with Finagle's LoadService.

• Update Finagle dependency to 18.2.0.

Minor tweaks and bugfixes.

• Removes scoverage as a runtime dependency.

Minor tweaks and bugfixes.