Oracle File Adapters: Windows Path on Linux

Scenario -

I create a SOA composite containing file Adapter (Write) in JDeveloper 11g.
I specify the output directory-file as D:\temp\order_out.txt

I then deploy this to an instance running on Enterprise Linux.

I test the composite and then view the trace in EM.

Everything has completed successfully -
Maybe one would expect the file adapter to throw an error due to the
"invalid" file name.

So where is the file?

I navigated to /user_projects/domains/soa_osb_domain/
and there I found the directory D:\temp and it did contain the order_out.txt file.