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https://issues.apache.org/jira/browse/LUCENE-763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12500230
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Daniel Naber commented on LUCENE-763:
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Thanks for your patch. I think there's a problem with the iterator which might
not occur often, but it should be fixed nonetheless: calling next() only has an
effect if hasNext() has been called before. You can see that by commenting out
"assertTrue("Second element doesn't exist.", it.hasNext());" in the test case:
the test will then fail, although, to my understanding, hasNext() should have
no side effects. Could you change you patch accordingly?
> LuceneDictionary skips first word in enumeration
> ------------------------------------------------
>
> Key: LUCENE-763
> URL: https://issues.apache.org/jira/browse/LUCENE-763
> Project: Lucene - Java
> Issue Type: Bug
> Components: Other
> Affects Versions: 2.0.0
> Environment: Windows Sun JRE 1.4.2_10_b03
> Reporter: Dan Ertman
> Attachments: LuceneDictionary.java, TestLuceneDictionary.java
>
>
> The current code for LuceneDictionary will always skip the first word of the
> TermEnum. The reason is that it doesn't initially retrieve TermEnum.term -
> its first call is to TermEnum.next, which moves it past the first term (line
> 76).
> To see this problem cause a failure, add this test to TestSpellChecker:
> similar = spellChecker.suggestSimilar("eihgt",2);
> assertEquals(1, similar.length);
> assertEquals(similar[0], "eight");
> Because "eight" is the first word in the index, it will fail.
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