Thanks for the suggestions! As you said, I finally manages to get over the isReadOnly message.
I've just commited the fix. Cheers, Nico PM -- View this message in context: http://forum.world.st/In-memory-FileSystem-write-streams-not-being-polymorphic-tp4721006p4722612.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.