With LUCENE-2554 we now run all lucene/solr tests with random codecs by default (except for a very short few).
You can use the option -Dtests.codec=Standard to force all tests to run with a specific codec. The default is -Dtests.codec=random. So if a failure occurs under a random codec, the codec that was chosen will be printed, for example: [junit] ------------- Standard Output --------------- [junit] NOTE: random codec of testcase 'test1' was: Sep [junit] ------------- ---------------- --------------- In this case the test can be easily reproduced with -Dtests.codec=Sep, so if you encounter a snag please include this information (and any other random seeds or notes it might print out) -- Robert Muir rcm...@gmail.com