[jira] [Commented] (FLINK-5690) protobuf is not shaded properly

["Robert Metzger (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-5690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15853217#comment-15853217 ] 

Robert Metzger commented on FLINK-5690:
---------------------------------------

Thank you for providing an example. I'll look into the issue next week.
Sorry for the delay. Please let me know if this issue is blocking you.

> 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
>
> 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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