GnU mBox

Further to my email of yesterday about folder names, I noticed this in 
the java spec for Store class....

name - The name of the Folder.
In some Stores, name can be an absolute path if it starts with the 
hierarchy delimiter.
Else it is interpreted relative to the 'root' of this namespace.

This suggests to me that gnu mbox is not conforming as it is. It's not 
clear what the "hierarchy delimiter" is of mbox, but on windows at least 
it would appear to be the file name delimiter - backslash \\.  That 
being so, any string passed to getFolder that doesn't start with 
backslash should be interpreted relative to the root of the namespace. 
Since windows pathnames start with a drive letter, that means passing an 
absolute file name in windows should be interpreted relative. Thus mbox 
is non-conforming.

That to me is further evidence that mbox names shouldn't be the file 
name but rather the relative name. Anybody disagree?