uschindler commented on PR #12674:
URL: https://github.com/apache/lucene/pull/12674#issuecomment-1936999051
Hi @cpoerschke,
the backport to 9.x produces errors, as opennlp seems to require Java 17:
```
/home/jenkins/workspace/Lucene-9.x-Linux/lucene/analysis/opennlp/src/java/org/apache/lucene/analysis/opennlp/tools/NLPChunkerOp.java:21:
error: cannot access ChunkerME
import opennlp.tools.chunker.ChunkerME;
^
bad class file:
/home/jenkins/.gradle/caches/modules-2/files-2.1/org.apache.opennlp/opennlp-tools/2.3.2/d739edba1e729691ed5ab80e1ccf330555a02ea7/opennlp-tools-2.3.2.jar(/opennlp/tools/chunker/ChunkerME.class)
class file has wrong version 61.0, should be 55.0
Please remove or make sure it appears in the correct subdirectory of the
classpath.
```
I think we have to revert the upgrade in Lucene 9.x and only apply it to
main (Lucene 10). It should not take too long until we release 10.0, so I think
that's a fine compromise.
If you revert the commit on 9.x, please move the CHANGES.txt entry in main
branch.
Uwe
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