Jiří Ondrušek created CAMEL-24060:
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Summary: 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
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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