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From "Luke Cwik (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (BEAM-398) JAXBCoder uses incorrect Double-Checked Locking
Date Mon, 31 Oct 2016 16:09:58 GMT

     [ https://issues.apache.org/jira/browse/BEAM-398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Luke Cwik resolved BEAM-398.
----------------------------
       Resolution: Fixed
    Fix Version/s: 0.3.0-incubating

> JAXBCoder uses incorrect Double-Checked Locking
> -----------------------------------------------
>
>                 Key: BEAM-398
>                 URL: https://issues.apache.org/jira/browse/BEAM-398
>             Project: Beam
>          Issue Type: Bug
>          Components: sdk-java-core
>            Reporter: Scott Wegner
>            Assignee: Thomas Groh
>            Priority: Minor
>              Labels: findbugs, newbie, starter
>             Fix For: 0.3.0-incubating
>
>
> [FindBugs DC_DOUBLECHECK|https://github.com/apache/incubator-beam/blob/58a029a06aea1030279e5da8f9fa3114f456c1db/sdks/java/build-tools/src/main/resources/beam/findbugs-filter.xml#L72]:
Possible double check of field
> Applies to: [JAXBCoder.getContext|https://github.com/apache/incubator-beam/blob/58a029a06aea1030279e5da8f9fa3114f456c1db/sdks/java/core/src/main/java/org/apache/beam/sdk/coders/JAXBCoder.java#L113].
For details on why this is incorrect, see: http://www.cs.umd.edu/~pugh/java/memoryModel/DoubleCheckedLocking.html
> This is a good starter bug. When fixing, please remove the corresponding entries from
[findbugs-filter.xml|https://github.com/apache/incubator-beam/blob/master/sdks/java/build-tools/src/main/resources/beam/findbugs-filter.xml]
and verify the build passes.



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