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https://issues.apache.org/jira/browse/LUCENE-9129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tomoko Uchida resolved LUCENE-9129.
-----------------------------------
Resolution: Not A Problem
> Updating from 7.X to 8.X breaks
> -------------------------------
>
> Key: LUCENE-9129
> URL: https://issues.apache.org/jira/browse/LUCENE-9129
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: xia0c
> Priority: Major
>
> Hi, during my upgrading process from 7.X to 8.X I found another code break.
> {code:java}
> import org.apache.lucene.analysis.Analyzer;
> import org.apache.lucene.index.LeafReaderContext;
> import org.apache.lucene.index.MultiDocValues;
> import org.apache.lucene.index.SortedDocValues;
> import org.apache.lucene.search.IndexSearcher;
> import org.apache.lucene.search.Query;
> import org.apache.lucene.search.SimpleCollector;
> import org.apache.lucene.search.TopDocs;
> import org.apache.lucene.util.LongValues;
> import org.apache.solr.handler.component.FacetComponent.FacetContext;
> import org.apache.solr.search.DocSet;
> import org.apache.solr.search.DocSetUtil;
> import org.apache.lucene.index.IndexReader;
> public class TestLucene {
>
> private FacetContext fcontext;
> private DocSet docs;
> private IndexReader reader;
>
>
> public void demo() throws IOException {
>
> DocSetUtil.collectSortedDocSet(docs, reader, new
> SimpleCollector() {
> @Override
> public boolean needsScores() { return false; }
> @Override
> protected void doSetNextReader(LeafReaderContext ctx) throws
> IOException {
> // TODO
> }
> @Override
> public void collect(int doc) throws IOException {
> // TODO Auto-generated method stub
>
> }
> });
>
> }
> }
> {code}
> The code should pass before, but it throws an error:
> {code:java}
> [ERROR] /TestLucene.java:[32,82] <anonymous TestLucene$1> is not abstract and
> does not override abstract method scoreMode() in
> org.apache.lucene.search.Collector
> [ERROR] /TestLucene.java:[36,19] method does not override or implement a
> method from a supertype
> {code}
> I try to find changes in the migration
> guide(https://github.com/apache/lucene-solr/blob/branch_8x/lucene/MIGRATE.txt)
> but I didn't find it.
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