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https://issues.apache.org/jira/browse/BEAM-3608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16737646#comment-16737646
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Kenneth Knowles commented on BEAM-3608:
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Vendored Guava is released, but not used throughout.
> Vendor Guava
> ------------
>
> Key: BEAM-3608
> URL: https://issues.apache.org/jira/browse/BEAM-3608
> Project: Beam
> Issue Type: Sub-task
> Components: runner-core, sdk-java-core
> Reporter: Kenneth Knowles
> Assignee: Kenneth Knowles
> Priority: Major
> Time Spent: 7.5h
> Remaining Estimate: 0h
>
> Instead of shading as part of our build, we can shade before build so that it
> is apparent when reading code, and in IDEs, that a particular class resides
> in a hidden namespace.
> {{import com.google.common.reflect.TypeToken}}
> becomes something like
> {{import org.apache.beam.private.guava21.com.google.common.reflect.TypeToken}}
> So we can very trivially ban `org.apache.beam.private` from public APIs
> unless they are annotated {{@Internal}}, and it makes sharing between our own
> modules never get broken by shading again.
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