Oops, setLowercaseExpandedTerms() is an instance method, not static.
I wrote: > QueryParser has a static method setLowercaseExpandedTerms() that you can call > to turn on automatic pre-expansion query term downcasing: > > <http://lucene.apache.org/java/3_0_2/api/all/org/apache/lucene/queryParser/QueryParser.html#setLowercaseExpandedTerms%28boolean%29>