[jira] Resolved: (LUCENE-1989) CharArraySet cannot be made generic, because it violates the Set interface

["Uwe Schindler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-1989?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uwe Schindler resolved LUCENE-1989.
-----------------------------------

    Resolution: Fixed
      Assignee: Uwe Schindler

Committed revision: 826395

> CharArraySet cannot be made generic, because it violates the Set<char[]> interface
> ----------------------------------------------------------------------------------
>
>                 Key: LUCENE-1989
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1989
>             Project: Lucene - Java
>          Issue Type: Bug
>    Affects Versions: 2.9
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>             Fix For: 3.0
>
>         Attachments: LUCENE-1989.patch, LUCENE-1989.patch
>
>
> I tried to make CharArraySet using generics (extends AbstractSet<char[]>) but this is not possible, as it e.g. returns sometimes String instances in the Iterator instead of []. Also its addAll method accepts both String and char[]. I think this class is a complete mis-design and violates almost everything (sorry).
> What to do? Make it Set<?> or just place a big @SuppressWarnings("unchecked"> in front of it?
> Because of this problem also a lot of Set declarations inside StopAnalyzer cannot be made generic as you never know whats inside.

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