old codecs problem in experiment/fa-tomcat-10

[eduarddrenth]

Lucene does not allow writing using backward-code.

Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.443 s <<< FAILURE! -- in nl.inl.blacklab.index.TestStandoffSpans
nl.inl.blacklab.index.TestStandoffSpans.testStandoffSpans -- Time elapsed: 0.150 s <<< ERROR!
java.lang.UnsupportedOperationException: Old codecs may only be used for reading
	at org.apache.lucene.backward_codecs.lucene87.Lucene87StoredFieldsFormat.fieldsWriter(Lucene87StoredFieldsFormat.java:142)
	at nl.inl.blacklab.codec.blacklab40.BlackLab40StoredFieldsFormat.fieldsWriter(BlackLab40StoredFieldsFormat.java:75)
	at nl.inl.blacklab.codec.blacklab40.BlackLab40StoredFieldsFormat.fieldsWriter(BlackLab40StoredFieldsFormat.java:20)
	at org.apache.lucene.index.StoredFieldsConsumer.initStoredFieldsWriter(StoredFieldsConsumer.java:50)
	at org.apache.lucene.index.StoredFieldsConsumer.startDocument(StoredFieldsConsumer.java:57)
	at org.apache.lucene.index.IndexingChain.startStoredFields(IndexingChain.java:535)
	at org.apache.lucene.index.IndexingChain.processDocument(IndexingChain.java:566)
	at org.apache.lucene.index.DocumentsWriterPerThread.updateDocuments(DocumentsWriterPerThread.java:263)
	at org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:425)
	at org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1561)
	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1846)
	at nl.inl.blacklab.index.BLIndexWriterProxyLucene.updateDocument(BLIndexWriterProxyLucene.java:62)
	at nl.inl.blacklab.search.indexmetadata.IndexMetadataIntegrated$MetadataDocument.updateMetadataDoc(IndexMetadataIntegrated.java:175)
	at nl.inl.blacklab.search.indexmetadata.IndexMetadataIntegrated$MetadataDocument.saveToIndex(IndexMetadataIntegrated.java:155)
	at nl.inl.blacklab.search.indexmetadata.IndexMetadataIntegrated.save(IndexMetadataIntegrated.java:803)
	at nl.inl.blacklab.search.indexmetadata.IndexMetadataIntegrated.<init>(IndexMetadataIntegrated.java:337)
	at nl.inl.blacklab.search.indexmetadata.IndexMetadataIntegrated.create(IndexMetadataIntegrated.java:99)
	at nl.inl.blacklab.search.BlackLabIndexIntegrated.getIndexMetadata(BlackLabIndexIntegrated.java:164)
	at nl.inl.blacklab.search.BlackLabIndexAbstract.<init>(BlackLabIndexAbstract.java:221)
	at nl.inl.blacklab.search.BlackLabIndexIntegrated.<init>(BlackLabIndexIntegrated.java:134)
	at nl.inl.blacklab.search.BlackLabEngine.openForWriting(BlackLabEngine.java:418)
	at nl.inl.blacklab.search.BlackLabEngine.openForWriting(BlackLabEngine.java:242)
	at nl.inl.blacklab.search.BlackLab.openForWriting(BlackLab.java:196)
	at nl.inl.blacklab.search.BlackLab.openForWriting(BlackLab.java:165)
	at nl.inl.blacklab.index.TestStandoffSpans.before(TestStandoffSpans.java:46)

[jan-niestadt]

I'm working on this, as I said.
Work in progress in this draft PR: #526

(note that this issue does not affect the current dev version, only experimental Lucene 9 versions)

[eduarddrenth]

sorry, overlooked that