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https://issues.apache.org/jira/browse/SLING-2744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13585604#comment-13585604
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Ian Boston commented on SLING-2744:
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Other issues noticed in this bundle:
org.apache.sling.atom.taglib.media.MediaTextTagHandler.type
org.apache.sling.atom.taglib.media.MediaHashTagHandler.algo
are set but never used.
> AbderaActivator uses invalid double check pattern
> -------------------------------------------------
>
> Key: SLING-2744
> URL: https://issues.apache.org/jira/browse/SLING-2744
> Project: Sling
> Issue Type: Bug
> Components: Scripting
> Affects Versions: Scripting JSP-Atom-Taglib 1.0.0
> Reporter: Ian Boston
>
> There is a if ( x == null); syncronized(lock) {; if (x == null ) check which
> violates Java memory model.
> see: http://www.cs.umd.edu/~pugh/java/memoryModel/DoubleCheckedLocking.html
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