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https://issues.apache.org/jira/browse/CAMEL-14324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen updated CAMEL-14324:
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Fix Version/s: (was: 3.1.0)
3.x
> Brave MDC Integration fails in Karaf due to missing class
> CorrelationFieldScopeDecorator
> ----------------------------------------------------------------------------------------
>
> Key: CAMEL-14324
> URL: https://issues.apache.org/jira/browse/CAMEL-14324
> Project: Camel
> Issue Type: Bug
> Components: camel-zipkin
> Reporter: Dietrich Schulten
> Priority: Minor
> Fix For: 3.x
>
>
> When {{useMDCLogging}} is set to true on a CamelContext with camel-zipkin,
> the application fails to start. The error message is
> {{java.lang.NoClassDefFoundError:
> brave/internal/propagation/CorrelationFieldScopeDecorator}}.
> The reason might be that the {{brave.context.slf4j.MDCScopeDecorator}} from
> {{brave-context-slf4j, introduced into ZipkinTracer with CAMEL-12721, extends
> brave.internal.propagation.CorrelationFieldScopeDecorator}}, which seems not
> to get exported by the brave bundle
> [https://github.com/openzipkin/brave/tree/5.6.5/brave], according to its bnd
> file ([https://github.com/openzipkin/brave/blob/5.6.5/brave/bnd.bnd]).
> Possibly this is why the [instance
> creation|https://github.com/apache/camel/blob/e46b2d916aa748dfd292190ed52b9d3413ceb70d/components/camel-zipkin/src/main/java/org/apache/camel/zipkin/ZipkinTracer.java#L576]
> fails.
> The solution could be to use only exported brave classes (effectively
> recreating {{MDCScopeDecorator}}) or maybe let OSGi create the
> {{MDCScopeDecorator}} instance.
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