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https://issues.apache.org/jira/browse/BEAM-2306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16080128#comment-16080128
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ASF GitHub Bot commented on BEAM-2306:
--------------------------------------

GitHub user alex-filatov opened a pull request:

    https://github.com/apache/beam/pull/3531

    [BEAM-2306] Fail build when @Deprecated is used without @deprecated javadoc

    Add checkstyle check to fail the build when @Deprecated is used without 
@deprecated javadoc (or vice versa).
    
    The check is disabled for existing violations where reason for deprecation 
and/or alternative is not clear.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/alex-filatov/beam 
beam-2306-check-missing-deprecated

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/beam/pull/3531.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #3531
    
----
commit 0694dcc62a28a98363cdd67a69e3f2c3ce82e072
Author: Alex Filatov <[email protected]>
Date:   2017-07-10T10:20:49Z

    [BEAM-2306] Add checkstyle check to fail the build when @Deprecated is used 
without @deprecated javadoc (or vice versa).
    
    The check is disabled for existing violations where reason for deprecation 
and/or alternative is not clear.

----


> @Deprecated without @deprecated javadoc explanation should cause build failure
> ------------------------------------------------------------------------------
>
>                 Key: BEAM-2306
>                 URL: https://issues.apache.org/jira/browse/BEAM-2306
>             Project: Beam
>          Issue Type: Bug
>          Components: sdk-java-core
>    Affects Versions: 2.0.0
>            Reporter: Kenneth Knowles
>              Labels: starter
>
> We have a number of places with {{@Deprecated}} annotations on seemingly 
> innocuous methods, for example in {{CoderRegistry}}, with no accompanying 
> {{@deprecated}} javadoc.
>  - If there is a preferred alternative, it should be explicitly linked.
>  - If there is no alternative, that should be explained.
>  - The deprecation should indicate whether it is for removal at version 3.0.0 
> or whether it was deprecated prior to 2.0.0 and may be removed at some 
> increment 2.x.y.
> I believe javadoc or findbugs has the ability to enforce proper policy. This 
> ticket tracks getting that policy in place.



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