[ https://issues.apache.org/jira/browse/LUCENE-2030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler resolved LUCENE-2030.
-----------------------------------
Resolution: Fixed
Fix Version/s: (was: 3.1)
3.0
Committed revision: 833934
> CachingSpanFilter synchronizing on a none final protected object
> ----------------------------------------------------------------
>
> Key: LUCENE-2030
> URL: https://issues.apache.org/jira/browse/LUCENE-2030
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Affects Versions: 2.9
> Reporter: Simon Willnauer
> Assignee: Uwe Schindler
> Priority: Minor
> Fix For: 3.0
>
> Attachments: LUCENE-2030.patch, LUCENE-2030.patch, LUCENE-2030.patch, LUCENE-2030.patch
>
>
> CachingSpanFilter and CachingWrapperFilter expose their internal cache via a protected
member which is lazily instantiated in the getDocSetId method. The current code yields the
chance to double instantiate the cache and internally synchronizes on a protected none final
member. My first guess is that this member was exposed for testing purposes so it should rather
be changed to package private.
> This patch breaks backwards compat while I guess the cleanup is kind of worth breaking
it.
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