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https://issues.apache.org/jira/browse/JENA-1953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17186674#comment-17186674
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ASF subversion and git services commented on JENA-1953:
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Commit 5c96e846a25a2386de5590ffdee3db4cb8494de0 in jena's branch
refs/heads/master from Andy Seaborne
[ https://gitbox.apache.org/repos/asf?p=jena.git;h=5c96e84 ]
Merge pull request #788 from strangepleasures/JENA-1953
JENA-1953 Prevent EnvJavaScript.get from returning multiple instances
> EnvJavaScript is supposed to be a singleton. However EnvJavaScript.get may
> return multiple instances
> ----------------------------------------------------------------------------------------------------
>
> Key: JENA-1953
> URL: https://issues.apache.org/jira/browse/JENA-1953
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ
> Reporter: Pavel Mikhailovskii
> Assignee: Andy Seaborne
> Priority: Minor
> Fix For: Jena 3.17.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> EnvJavaScript is supposed to be a lazily-initialized singleton but the
> implementation is broken. It uses a non-volatile static field which is not
> lock-guarded when read. As a result , EnvJavaScript.get may instantiate
> multiple instances.
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