[LUCENE-2634] IndexReader.isCurrent() lies if documents were only removed by latest commit

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.9.3
• Fix Version/s: 2.9.4, 3.0.3, 3.1, 4.0-ALPHA

Environment

Ubuntu 9.10
Sun-java-jdk 1.6.0_20-b02

• Lucene Fields: New
• Assignee: Michael McCandless
• Reporter: Nikolay Zamosenchuk
• Created: 08/Sep/10 07:54
• Updated: 28/Aug/22 12:32
• Resolved: 08/Sep/10 14:49

Description

Usecase is as following:

1. Get indexReader via indexWriter.
2. Delete documents by Term via indexWriter.
3. Commit indexWriter.
4. indexReader.isCurrent() returns true.

Usually there is a check if index reader is current. If not then it is reopened (re-obtained via writer or ect.). But this causes the problem when documents can still be found through the search after deletion.
Testcase is attached.