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From "David Dillard (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-1249) Bugs in org.apache.lucene.index.TermVectorsReader.clone()
Date Thu, 27 Mar 2008 20:03:28 GMT
Bugs in org.apache.lucene.index.TermVectorsReader.clone()
---------------------------------------------------------

                 Key: LUCENE-1249
                 URL: https://issues.apache.org/jira/browse/LUCENE-1249
             Project: Lucene - Java
          Issue Type: Bug
          Components: Index
    Affects Versions: 2.3.1
            Reporter: David Dillard
            Priority: Minor
             Fix For: 2.3.2


A couple of things:

- The implementation can return null which is not allowed.  It should throw a CloneNotSupportedException
if that's the case.

- Part of the code reads:

    TermVectorsReader clone = null;
    try {
      clone = (TermVectorsReader) super.clone();
    } catch (CloneNotSupportedException e) {}

    clone.tvx = (IndexInput) tvx.clone();

If a CloneNotSupportedException is caught then "clone" will be null and the assignment to
clone.tvx will fail with a null pointer exception.

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