invalid number of parameters for xcopy on windows

[timor-raiman]

For example when deploying maven on windows 8.1 with the maven cookbook on chef 12:
The package is extracted normaly in the Temp dir, and then I get:

Invalid number of parameters
---- End output of "C:\7-zip\7z.exe" e "C:\chef\cache/maven-3.1.1.tar.gz" -so | "C:\7-zip\7z.exe" x -aoa -si -ttar -o"C:/Users/traiman/AppData/Local/Temp/d20150325-43224-gdk0ta" -uy && for /f %1 in ('dir /ad /b "C:\Users\traiman\AppData\Local\Temp\d20150325-43224-gdk0ta"') do xcopy "C:\Users\traiman\AppData\Local\Temp\d20150325-43224-gdk0ta%1" "/usr/local/maven" /s /e ----
Ran "C:\7-zip\7z.exe" e "C:\chef\cache/maven-3.1.1.tar.gz" -so | "C:\7-zip\7z.exe" x -aoa -si -ttar -o"C:/Users/traiman/AppData/Local/Temp/d20150325-43224-gdk0ta" -uy && for /f %1 in ('dir /ad /b "C:\Users\traiman\AppData\Local\Temp\d20150325-43224-gdk0ta"') do xcopy "C:\Users\traiman\AppData\Local\Temp\d20150325-43224-gdk0ta%1" "/usr/local/maven" /s /e returned 4

[timor-raiman]

In this case, setting node['maven']['m2_home'] = 'C:\usr\local\maven', resolves the issue.
Apparently, the default unix style path '/usr/local/maven' used as the home_dir attribute manifests as this cryptic error.