Make SharedMetricRegistries thread-safe #1094
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Change `defaultRegistryName` from volatile to `AtomicReference`. This allows to us to perform an atomic set of the default registry bane and not end up with a lost update. This also adds a package-private setter for `defaultRegistryName` for testing purposes, so we don't perform any reflection hacks in the unit tests.
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Based on the work of @mattnelson in #849 |
jplock
approved these changes
Feb 27, 2017
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Change
defaultRegistryNamefrom volatile toAtomicReference. This allows to us to perform an atomic set of the default registry bane and not end up with a lost update.This also adds a package-private setter for
defaultRegistryNamefor testing purposes, so we don't perform any reflection hacks in the unit tests.