Uwe, it looks a little crazy:

we've got asserts here that "index" is in bounds and certainly not -1
right before the method call!
https://github.com/apache/lucene/blob/main/lucene/core/src/java/org/apache/lucene/codecs/lucene90/Lucene90DocValuesProducer.java#L1123-L1125

On Wed, Dec 8, 2021 at 12:33 PM Uwe Schindler <[email protected]> wrote:
>
> I updated the dependencies of Solr's main branch to Lucene 9.0
>
> On Mac and Linux, the following error occurs sometimes:
> https://jenkins.thetaphi.de/job/Solr-main-Linux/2070/testReport/junit/org.ap
> ache.solr.request/SimpleFacetsTest/testRangeFacetFilterVsDocValuesRandom/
> https://jenkins.thetaphi.de/job/Solr-main-MacOSX/517/testReport/junit/org.ap
> ache.solr/TestRandomDVFaceting/testRandomFaceting/
>
> "ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 1" at
> org.apache.lucene.util.packed.DirectMonotonicReader.get(DirectMonotonicReade
> r.java:161)
>
> This looks like a bug (or is Solr not using something with docvalues
> correctly, but an AIOOBE should not happen)!
>
> When searching through the failure mails, it looks like this was already
> there with the Lucene preview from summer 2021.
>
> Uwe
>
> -----
> Uwe Schindler
> Achterdiek 19, D-28357 Bremen
> https://www.thetaphi.de
> eMail: [email protected]
>
>
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