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https://issues.apache.org/jira/browse/FLINK-5690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15862821#comment-15862821
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Robert Metzger commented on FLINK-5690:
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You are right. My project contained the protobuf dependency.
Are you okay with closing this JIRA as "won't fix"? We can currently not shade
protobuf away, due to our dependency to Akka.
> protobuf is not shaded properly
> -------------------------------
>
> Key: FLINK-5690
> URL: https://issues.apache.org/jira/browse/FLINK-5690
> Project: Flink
> Issue Type: Bug
> Components: Build System
> Affects Versions: 1.1.4, 1.3.0
> Reporter: Andrey
> Assignee: Robert Metzger
>
> Currently distributive contains com/google/protobuf package. Without proper
> shading client code could fail with:
> {code}
> Caused by: java.lang.IllegalAccessError: tried to access method
> com.google.protobuf.XXXX
> {code}
> Steps to reproduce:
> * create job class "com.google.protobuf.TestClass"
> * call com.google.protobuf.TextFormat.escapeText(String) method from this
> class
> * deploy job to flink cluster (usign web console for example)
> * run job. In logs IllegalAccessError.
> Issue in package protected method and different classloaders. TestClass
> loaded by FlinkUserCodeClassLoader, but TextFormat class loaded by
> sun.misc.Launcher$AppClassLoader
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