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via lucene-java-user by petite_abeille, 1 year ago
This exception has no message.
java.lang.NullPointerException at<init>(Unknown Source) at Source) at org.apache.lucene.index.FieldInfos.<init>(Unknown Source) at org.apache.lucene.index.SegmentReader.<init>(Unknown Source) at org.apache.lucene.index.IndexWriter.mergeSegments(Unknown Source) at org.apache.lucene.index.IndexWriter.optimize(Unknown Source) at org.apache.lucene.index.IndexWriter.addIndexes(Unknown Source)