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https://issues.apache.org/jira/browse/FLINK-1789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14382015#comment-14382015
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Robert Metzger commented on FLINK-1789:
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You can just add the path to the regular JVM classpath because Flink is using
the JVM's standard classloader if the FlinkUserCodeCL doesn't find a class.
> Allow adding of URLs to the usercode class loader
> -------------------------------------------------
>
> Key: FLINK-1789
> URL: https://issues.apache.org/jira/browse/FLINK-1789
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Runtime
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Minor
>
> Currently, there is no option to add customs classpath URLs to the
> FlinkUserCodeClassLoader. JARs always need to be shipped to the cluster even
> if they are already present on all nodes.
> It would be great if RemoteEnvironment also accepts valid classpaths URLs and
> forwards them to BlobLibraryCacheManager.
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