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Asked: 2026-05-14T18:40:14+00:00

How to handle this error in lucene: java.lang.AbstractMethodError: org.apache.lucene.store.Directory.listAll()[Ljava/lang/String; at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:568) at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:69) at

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How to handle this error in lucene:

java.lang.AbstractMethodError: org.apache.lucene.store.Directory.listAll()[Ljava/lang/String;
        at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:568)
        at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:69)
        at org.apache.lucene.index.IndexReader.open(IndexReader.java:316)
        at org.apache.lucene.index.IndexReader.open(IndexReader.java:188)

I am making a lucene function call but unfortunately it itself calls an abstract method of some class, as is evident from the error above. What is the work around for this?

Thanks, Akhil

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1 Answer

  1. Editorial Team

    Ok! I found the answer. It was not the problem of version mismatch. Rather the hadoop contrib’s FileSystemDirectory which extends abstract class Directory did not implement the abstract function listAll(). listAll() function was being called by lucene indexReader.open() function.
    I added this function and it is up and running now.

    Thanks

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