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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 35626] New: - Crash when querying an index using multiple term positions.
Date Wed, 06 Jul 2005 09:22:19 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=35626

           Summary: Crash when querying an index using multiple term
                    positions.
           Product: Lucene
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Index
        AssignedTo: java-dev@lucene.apache.org
        ReportedBy: hans.hjelm@ling.su.se


file: MultipleTermPositions.java, line: 201, function: skipTo(int).

This refers to the source that can currently be downloaded from the lucene site,
Lucene v. 1.4.3.

The function peek() returns null (because top() also retruned null). There is no
check for this, as far as I can understand. The function doc() is called on a
null-object, which results in a NullPointerException.

I switched the specified line to this one:

while(_termPositionsQueue.peek() != null && target >
_termPositionsQueue.peek().doc())

This got rid of the crash for me.

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