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https://issues.apache.org/jira/browse/LUCENE-2712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-2712:
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Attachment: LUCENE-2712.patch
> FieldBoostMapAttribute in contrib/qp is broken.
> -----------------------------------------------
>
> Key: LUCENE-2712
> URL: https://issues.apache.org/jira/browse/LUCENE-2712
> Project: Lucene - Java
> Issue Type: Bug
> Components: contrib/*
> Reporter: Robert Muir
> Fix For: 3.1, 4.0
>
> Attachments: LUCENE-2712.patch
>
>
> While looking for more SuppressWarnings in lucene, i came across two of them
> in contrib/queryparser.
> even worse, i found these revolved around using maps with CharSequence as key.
> From the javadocs for CharSequence:
> This interface does not refine the general contracts of the equals and
> hashCode methods. The result of comparing two objects that implement
> CharSequence is therefore, in general, undefined. Each object may be
> implemented by a different class, and there is no guarantee that each class
> will be capable of testing its instances for equality with those of the
> other. {color:red} It is therefore inappropriate to use arbitrary
> CharSequence instances as elements in a set or as keys in a map. {color}
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