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From kennknowles <>
Subject [GitHub] beam pull request #4021: [BEAM-3081] Findbugs: NonNull by default
Date Fri, 20 Oct 2017 03:30:45 GMT
GitHub user kennknowles opened a pull request:

    [BEAM-3081] Findbugs: NonNull by default

    Follow this checklist to help us incorporate your contribution quickly and easily:
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    R: @jkff since you mentioned the time findbugs spent, I thought I would try to get more
value out of it anyhow.
    I have wondered for a while why `@Nullable` annotations didn't take care of themselves,
since this is maybe the most important thing findbugs ought to be gaining us. Turns out it
is simply turned off by default. It has to be turned on per-package, as far as I can tell.
That is just as well, because some packages are in better shape than others.
    I addressed some low-hanging fruit to demonstrate, and the changes I made were universally
improvements IMO, so that's nice evidence in favor of taking this further.

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

    $ git pull NonNull-by-default

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

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

    This closes #4021
commit b6a23a93efebe7973ad602faa7796ff50bb71769
Author: Kenneth Knowles <>
Date:   2017-10-19T22:07:12Z

    Add dep on Apache-licensed findbugs-annotations implementation
    Very useful library, previously unavailable under an acceptable license.  This
    is a compatible library reimplemented, discussed and now used by many Apache
    projects, including Avro, Falcon, Geode, HBase, Nifi, and Rya.

commit 5f83a2dbfcc6c8f9fc892037cff426a552696905
Author: Kenneth Knowles <>
Date:   2017-10-20T02:27:21Z

    Make Java core SDK root dir NonNull by default

commit 4ccf818735d0b67b9283cccc90e7fbd7218820de
Author: Kenneth Knowles <>
Date:   2017-10-20T02:42:44Z

    NonNull by default in sdk/coders

commit b702fb102ec94c8737b55ccdce8c99087dd54fcb
Author: Kenneth Knowles <>
Date:   2017-10-20T02:43:02Z

    NonNull by default in sdk/annotations

commit bcb2f4563b1331600e64f2a1458e4d126e94d6a9
Author: Kenneth Knowles <>
Date:   2017-10-20T02:50:47Z

    NonNull by default in sdk/runners

commit 136fc4ce3648bd6eebaf8233c6269d49a0b75a11
Author: Kenneth Knowles <>
Date:   2017-10-20T02:54:46Z

    NonNull by default in sdk/state

commit f16feba0febb9e42fc78db63ae64c26f949c2b3a
Author: Kenneth Knowles <>
Date:   2017-10-20T03:08:36Z

    NonNull by default for sdk/testing

commit b92643d2b8b6c482deae408774868d72fc7848bb
Author: Kenneth Knowles <>
Date:   2017-10-20T03:26:41Z

    Ignore findbugs in AutoValue generated classes

commit 9d34d49de28e412aa7147442765f1012bf5d4634
Author: Kenneth Knowles <>
Date:   2017-10-20T03:26:59Z

    NonNull by default in metrics



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