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https://issues.apache.org/jira/browse/CAMEL-5342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13291549#comment-13291549
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Ben Manes commented on CAMEL-5342:
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CLHM v1.3 includes an OSGi manifest, if that helps.
> Shaded concurrentlinkedhashmap-lru conflicts with existing jar
> --------------------------------------------------------------
>
> Key: CAMEL-5342
> URL: https://issues.apache.org/jira/browse/CAMEL-5342
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 2.9.2
> Reporter: Mikhail Moussikhine
> Assignee: Willem Jiang
>
> Package com.googlecode.concurrentlinkedhashmap:concurrentlinkedhashmap-lru is
> included/shaded inside the camel-core jar.
> It is not very nice if concurrentlinkedhashmap-lru.jar is already on the
> path. It is a deal breaker, if their versions are different. For example
> cassandra-1.1.1 requires
> ConcurrentLinkedHashMap$Builder.maximumWeightedCapacity(), which is missing
> from the version included in camel.
> It would be nice if concurrentlinkedhashmap-lru was included as a normal
> dependency. Comment in the pom.xml says "Shade the googlecode stuff for
> OSGi". Well, if that is strictly required, maybe it could be better included
> in camel-core-osgi package.
> In any case, if it must be shaded at all, it would be safer to use relocation
> property of the maven-shade-plugin. In this case, camel could stay with the
> version it wants, without conflicting with explicit dependencies.
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