I just upgraded from lucene 4.1 to 4.2.1.  We believe we are seeing some 
different behavior.

I'm using org.apache.lucene.queryparser.classic.QueryParser.  If I pass the 
string "20110920/EXPIRED" (w/o quotes) to the parser, I get:

org.apache.lucene.queryparser.classic.ParseException: Cannot parse 
'20110920/EXPIRED': Lexical error at line 1, column 17.  Encountered: <EOF> 
after : "/EXPIRED"
       at 
org.apache.lucene.queryparser.classic.QueryParserBase.parse(QueryParserBase.java:131)

We believe this used to work.

I tried googling for this and found something that said I should use 
QueryParser.escape() on the string before passing it to the parser.  However, 
that seems to break phrase queries (e.g., "John Smith" - with the quotes; I 
assume it's escaping the double-quotes and doesn't realize it's a phrase).

Since it is a forward slash, I'm confused why it would need escaping of any of 
the characters in the string with the "/EXPIRED".

Has anyone seen this?

Scott

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