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https://issues.apache.org/jira/browse/LUCENE-2953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-2953:
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Attachment: LUCENE-2953.patch
Here my patch, that also removes initialize(int), which is bad design.
For 3.x we can simply leave out this change and only make the heap variable
private and expose as Object[] using a getter method.
> PriorityQueue is inheriently broken if subclass attempts to use "heap"
> w/generic T bound to anything other then "Object"
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-2953
> URL: https://issues.apache.org/jira/browse/LUCENE-2953
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Hoss Man
> Attachments: BenchmarkArrayAccess.java, LUCENE-2953.patch,
> LUCENE-2953.patch
>
>
> as discovered in SOLR-2410 the fact that the protected "heap" variable in
> PriorityQueue is initialized using an Object[] makes it impossible for
> subclasses of PriorityQueue to exist and access the "heap" array unless they
> bind the generic to Object.
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