Gradle and Eclipse plugin on WSL generate configuration with Linux native directories

I’m starting to use the Windows Subsystem for Linux (aka WSL) as seems a really good development environment, switching from Cygwin.
But when I try to generate Eclipse configuration for my projects from a WSL command line I got Linux native directories.
Is this the expected behaviour? I mean, if the Cygwin case is treated as special, should WSL also treated as special, even is an almost trully Linux OS?
I’ve created the repository https://github.com/lucasvc/gradle-eclipse-wsl as an example.
I’ve pushed the two .classpath's created by WSL and Cygwin environments.

Thanks!