2017-02-23 10:08 GMT+01:00 Tobias Pape <Das.Linux at gmx.de>:
> I'm onto (2), and frankly, I was surprised to learn that:
>
>         squeak-dir$ mkdir foo
>         squeak-dir$ chmod -w foo
>
> and then
>         (FileDirectory default / 'foo') newFileNamed: 'bar'. "==> nil"
>
> this Must Not happen.

What do you expect instead, an Exception? In StandardFileStream
open:forWrite: it reads

    fileID ifNil: [^ nil].  "allows sender to detect failure"

which means some indirect senders do not seem to pay attention properly.