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https://issues.apache.org/jira/browse/SOLR-6271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15905234#comment-15905234
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Abhishek Kumar Singh commented on SOLR-6271:
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This issue is still occuring in my case, wherein I'm using
_DirectSolrSpellChecker_ and _FileBasedSpellChecker_ . The problem is that
_DirectSolrSpellChecker_ is using *LuceneLavensteinDistance* while
_FileBasedSpellChecker_ is using *LavensteinDistance* as the StringDistance.
This is throwing the *IllegalArgumentException( "All checkers need to use the
same StringDistance.");* .
What can be the fix to this?
> ConjunctionSolrSpellChecker wrong check for same string distance
> ----------------------------------------------------------------
>
> Key: SOLR-6271
> URL: https://issues.apache.org/jira/browse/SOLR-6271
> Project: Solr
> Issue Type: Bug
> Components: spellchecker
> Affects Versions: 4.9
> Reporter: Igor Kostromin
> Assignee: James Dyer
> Fix For: 5.5
>
> Attachments: SOLR-6271.patch, SOLR-6271.patch
>
>
> See ConjunctionSolrSpellChecker.java
> try {
> if (stringDistance == null) {
> stringDistance = checker.getStringDistance();
> } else if (stringDistance != checker.getStringDistance()) {
> throw new IllegalArgumentException(
> "All checkers need to use the same StringDistance.");
> }
> } catch (UnsupportedOperationException uoe) {
> // ignore
> }
> In line stringDistance != checker.getStringDistance() there is comparing by
> references. So if you are using 2 or more spellcheckers with same distance
> algorithm, exception will be thrown anyway.
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