Path.createFile() and Path.createDirectory() throw NoSuchFileException if parent doesn't exist (Windows)

[Alan Bateman]

Vince Bonfanti wrote:
> I notice that on Windows both Path.createFile() and
> Path.createDirectory() throw a NoSuchFileException if their parent
> directory doesn't exist. Is this expected behavior for all file
> systems, or is it optional for a file system to create the parent
> directories if they don't exist? In either case, it should documented
> in the Javadocs.
>
> Vince
>   
All of Path's createXXX method are specified to throw IOException if 
they fail (a non-existent parent directory being one of many possible 
reasons).  Implementations can throw more specific exceptions where they 
can detect specific errors and map them to a specific IOException. So if 
the parent directory doesn't exist then the createXXX methods should 
fail but it's up to the implementation if it throws more specific/useful 
IOException or not. In this case, we attempt to map this case to 
NoSuchFileException. Does that help? Where you need to create a file 
tree then the Files.createDirectories utility method can be used.

-Alan.