Ankou76ers opened a new issue, #12210: URL: https://github.com/apache/lucene/issues/12210
### Description When calling [preceding ](https://github.com/apache/lucene/blob/0782535017c9e737350e96fb0f53457c7b8ecf03/lucene/analysis/opennlp/src/java/org/apache/lucene/analysis/opennlp/OpenNLPSentenceBreakIterator.java#L136) function from [OpenNLPSentenceBreakIterator](https://github.com/apache/lucene/blob/main/lucene/analysis/opennlp/src/java/org/apache/lucene/analysis/opennlp/OpenNLPSentenceBreakIterator.java) it may raise an ArrayIndexOutOfBoundsException. The "start search from the middle" computation seems wrong: ```java currentSentence = sentenceStarts.length / 2; // start search from the middle ``` It should be instead (like in [following](https://github.com/apache/lucene/blob/0782535017c9e737350e96fb0f53457c7b8ecf03/lucene/analysis/opennlp/src/java/org/apache/lucene/analysis/opennlp/OpenNLPSentenceBreakIterator.java#L75) function): ```java currentSentence = (sentenceStarts.length -1) / 2; // start search from the middle ``` Otherwise when sentenceStarts.length == 2 we get currentSentence equals 1 and possibly an ArrayIndexOutOfBoundsException later in the [moveToSentenceAt](https://github.com/apache/lucene/blob/0782535017c9e737350e96fb0f53457c7b8ecf03/lucene/analysis/opennlp/src/java/org/apache/lucene/analysis/opennlp/OpenNLPSentenceBreakIterator.java#L97) function. ### Version and environment details _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
