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