GridFS is not dealing well with the fact that File separator character varies from Windows to Unix/Linux. On a Windows machine, the key generated by GridFS uses '\', i.e.:

JBoss-MC-Demo TRACE [30-04-2010 16:12:04] InvocationContextInterceptor - Invoked with command PutKeyValueCommand

{key=movies\bond.iso, value=file, len=0b, chunk_size=8000, mod_time=Fri Apr 30 16:12:04 CEST 2010, putIfAbsent=false, lifespanMillis=-1, maxIdleTimeMillis=-1}

and InvocationContext [NonTxInvocationContext

{flags=[FORCE_SYNCHRONOUS]}

]

Whereas a Unix/Linux machine generates keys with '/', ie:

JBoss-MC-Demo TRACE [30-04-2010 16:12:51] InvocationContextInterceptor - Invoked with command GetKeyValueCommand

{key=movies/bond.iso}

and InvocationContext [NonTxInvocationContext

{flags=null}

]