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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-1989) CharArraySet cannot be made generic, because it violates the Set<char[]> interface
Date Sat, 17 Oct 2009 11:51:31 GMT
CharArraySet cannot be made generic, because it violates the Set<char[]> interface
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                 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
             Fix For: 3.0


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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