Michael Busch created LUCENE-5401:
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Summary: Field.StringTokenStream#end() does not call super.end()
Key: LUCENE-5401
URL: https://issues.apache.org/jira/browse/LUCENE-5401
Project: Lucene - Core
Issue Type: Bug
Components: core/other
Affects Versions: 4.6
Reporter: Michael Busch
Assignee: Michael Busch
Priority: Minor
Fix For: 4.6.1
Field.StringTokenStream#end() currently does not call super.end(). This
prevents resetting the PositionIncrementAttribute to 0 in end(), which can lead
to wrong positions in the index under certain conditions.
I added a test to TestDocument which indexes two Fields with the same name,
String values, indexed=true, tokenized=false and
IndexOptions.DOCS_AND_FREQS_AND_POSITIONS. Without the fix the test fails. The
first token gets the correct position 0, but the second token gets position 2
instead of 1. The reason is that in DocInverterPerField line 176 (which is just
after the call to end()) we increment the position a second time, because end()
didn't reset the increment to 0.
All tests pass with the fix.
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