Adrien Grand created LUCENE-8175:

             Summary: ICUTokenizer might return corrupt tokens due to 
concurrency bug in ICU4J
                 Key: LUCENE-8175
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Adrien Grand

I was digging some test failures with {{testRandomHugeStrings}} that occurred 
since the upgrade to ICU4J 60.2 which happen to boil down to this bug: which is fixed but not released 

In short an int[] is shared across several threads while it shouldn't. As a 
consequence, ICUTokenizer may sometimes return corrupt tokens. I pinged on the 
issue to know when a release fixing this bug is expected.

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