uschindler commented on issue #12180:
URL: https://github.com/apache/lucene/issues/12180#issuecomment-1804313295
Hi, the commit causes test failures like this from time to time:
```
org.apache.lucene.facet.taxonomy.directory.TestDirectoryTaxonomyReader >
testGetPathAndOrdinalsRandomMultithreading FAILED
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an
uncaught exception in thread: Thread[id=276, name=Thread-152, state=RUNNABLE,
group=TGRP-TestDirectoryTaxonomyReader]
Caused by:
java.lang.IllegalArgumentException: bound must be positive
at __randomizedtesting.SeedInfo.seed([EB36AAC7E6947189]:0)
at java.base/java.util.Random.nextInt(Random.java:322)
at
randomizedtesting.runner@2.8.1/com.carrotsearch.randomizedtesting.Xoroshiro128PlusRandom.nextInt(Xoroshiro128PlusRandom.java:73)
at
randomizedtesting.runner@2.8.1/com.carrotsearch.randomizedtesting.AssertingRandom.nextInt(AssertingRandom.java:87)
at
org.apache.lucene.facet.taxonomy.directory.TestDirectoryTaxonomyReader.assertGettingPaths(TestDirectoryTaxonomyReader.java:519)
at
org.apache.lucene.facet.taxonomy.directory.TestDirectoryTaxonomyReader$4.run(TestDirectoryTaxonomyReader.java:721)
```
And hundreds of more threads following. Looks like sometimes the ordinals
array is initialized by zero length. The followup random then fail because the
upper bound passed to `random#nextInt(limit)` must be `limit>=1`.
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