Jeff Stein created LUCENE-7038:
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Summary: QueryScorer.init returns empty TokenStream if
setMaxDocCharsToAnalyze is not previously called
Key: LUCENE-7038
URL: https://issues.apache.org/jira/browse/LUCENE-7038
Project: Lucene - Core
Issue Type: Bug
Components: modules/highlighter
Affects Versions: 5.4
Reporter: Jeff Stein
Priority: Minor
This is a regression since Lucene 4.10 regarding The QueryScorer class in the
Highlighter module.
In 4.10, the `QueryScorer.init` method returns a working tokenStream even if
the maxCharsToAnalyze variable is set to zero. In both versions, zero is the
default value and in 4.10 it indicated that the entire stream should be
returned, not an empty stream.
The problem is with the `WeightedSpanTermExtractor` always wrapping the
tokenStream in a `OffsetLimitTokenFilter` filter, even when the passed down
maxDocCharsToAnalyze variable is zero.
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