Avoid NaN values causing problems in metrics output#2812

Merged

tjquinno merged 1 commit intohelidon-io:masterfrom tjquinno:metrics-NaN

Feb 26, 2021

+57-7

Commits on Feb 26, 2021

Fix bug where timer's histogram did not use the timer's clock; avoid cases where double NaN can occur and, among other things, spoil JSON formatting as a BigDecimal; add tests
tjquinno
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