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https://issues.apache.org/jira/browse/SOLR-4275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13545209#comment-13545209
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Commit Tag Bot commented on SOLR-4275:
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[branch_4x commit] Uwe Schindler
http://svn.apache.org/viewvc?view=revision&revision=1429411
Merged revision(s) 1429410 from lucene/dev/trunk:
SOLR-4275: Add test
> TrieTokenizer causes StringIOOBE when input is empty instead of returning no
> token
> ----------------------------------------------------------------------------------
>
> Key: SOLR-4275
> URL: https://issues.apache.org/jira/browse/SOLR-4275
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.0
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Fix For: 4.1, 5.0
>
> Attachments: SOLR-4275.patch
>
>
> When you use the admin interface and select a trie field (e.g. tint) and
> enter nothing into the field, the tokenizer should normally return no tokens.
> TrieTokenizer instead gets and SIOOBE because read() into the charbuffer
> returns -1 (end of stream). This is used to initialize the string's length...
> The problem is mostly affecting the analysis request handler and query
> parsing, but while indexing the values, Solr uses NumericField and not the
> tokenizer directly. The solr admin UI has the additional problem that you get
> a strange exception if you fill in the number on the left, but leave the
> query (right empty).
> The fix is to modify the tokenizer to behave like a real tokenizer:
> - correct the read loop to look like the one from KeywordTokenizer. The
> current loop is not guaranteed to work with unbuffered readers (Solr always
> uses StringReaders so this is no issue, but who knows)
> - if the resulting string is empty (total len == 0), set a boolean to false
> and make the incrementToken/close/end methods not delegate and return false.
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