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Posted to issues@flink.apache.org by "John Fang (JIRA)" <ji...@apache.org> on 2018/02/06 15:26:01 UTC

[jira] [Created] (FLINK-8567) Maven-shade-plugin can't relocate Scala classes.

John Fang created FLINK-8567:
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             Summary: Maven-shade-plugin can't relocate Scala classes.
                 Key: FLINK-8567
                 URL: https://issues.apache.org/jira/browse/FLINK-8567
             Project: Flink
          Issue Type: Bug
          Components: Table API &amp; SQL
    Affects Versions: 2.0.0, 1.5.0
            Reporter: John Fang
             Fix For: 2.0.0
         Attachments: exclude_guava.patch

Maven-shade-plugin only relocate java classes, but not Scala classes. I try to decompile flink-table Jar, and find those guava path not beed relocated on those Scala classes. But flink job run normally for all time. Because flink-dist_${scala.binary.version}.jar contains the google guava and flink shaded guava at the same time. Why is the google guava still contained int the flink?
Because we build flink by Maven-assembly-plugin at flink-disk module. The Assembly Plugin aggregate its all dependencies, includes those dependencies which are shaded now. If we use the following patch which exclude the Guava, then the flink-dist_${scala.binary.version}.jar only contains the flink-shaded-guava, not the google guava.



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