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https://issues.apache.org/jira/browse/CAMEL-23811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Netherton resolved CAMEL-23811.
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Resolution: Fixed
> camel-micrometer: app.info gauge value uses weak reference causing NaN values
> -----------------------------------------------------------------------------
>
> Key: CAMEL-23811
> URL: https://issues.apache.org/jira/browse/CAMEL-23811
> Project: Camel
> Issue Type: Bug
> Components: camel-micrometer
> Reporter: James Netherton
> Assignee: James Netherton
> Priority: Minor
> Fix For: 4.18.3, 4.21.0
>
>
> Relates to one of the issues reported in this Zulip thread:
> https://camel.zulipchat.com/#narrow/channel/257302-camel-quarkus/topic/Strange.20behavior.20from.20app_info.20metric/with/605650573
> The app.info metric registered by AbstractMicrometerService.registerAppInfo()
> uses meterRegistry.gaugeCollectionSize() with a new ArrayList<>() that is not
> stored in any field.
> Micrometer holds a weak reference to the collection, so once the GC collects
> it, the gauge returns NaN — and eventually the metric disappears entirely.
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