[LUCENE-5682] NPE in QueryRescorer when Scorer is null

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.8
• Fix Version/s: 4.9, 6.0
• Lucene Fields: New
• Assignee: Joel Bernstein
• Reporter: Joel Bernstein
• Created: 19/May/14 04:48
• Updated: 28/Aug/22 14:07
• Resolved: 23/May/14 09:55

Description

While testing out the QueryRescorer I was getting an NPE on the scorer when using a TermQuery as the rescore query. Looks like a TermQuery will return a null Scorer if the term is not present in the index segment.

Caused by: java.lang.NullPointerException
[junit4] > at org.apache.lucene.search.QueryRescorer.rescore(QueryRescorer.java:89)