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https://issues.apache.org/jira/browse/CAMEL-24060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18096232#comment-18096232
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Claus Ibsen commented on CAMEL-24060:
-------------------------------------
Fixed via https://github.com/apache/camel/pull/24683
> camel-pqc: PQCMicrometerMetrics static reference breaks GraalVM native image
> compilation
> ----------------------------------------------------------------------------------------
>
> Key: CAMEL-24060
> URL: https://issues.apache.org/jira/browse/CAMEL-24060
> Project: Camel
> Issue Type: Bug
> Components: camel-pqc
> Reporter: Jiří Ondrušek
> Assignee: Jiří Ondrušek
> Priority: Major
> Fix For: 4.22.0
>
>
> The PQCProducer.createMetrics() method (added in CAMEL-23848) directly
> imports and calls PQCMicrometerMetrics.create(camelContext). While there is a
> runtime classpath guard that prevents loading the class on JVM when
> micrometer is absent, GraalVM native image performs closed-world static
> analysis and follows the bytecode reference to PQCMicrometerMetrics ->
> io.micrometer.core.instrument.Meter, causing:
> {code}
> Discovered unresolved method during parsing:
> org.apache.camel.component.pqc.metrics.PQCMicrometerMetrics.create(org.apache.camel.CamelContext)
> Caused by: java.lang.ClassNotFoundException:
> io.micrometer.core.instrument.Meter
> {code}
> *Fix:* Replace the direct PQCMicrometerMetrics.create() call with reflection
> via CamelContext.getClassResolver() so GraalVM never sees a static link to
> micrometer classes.
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