I need to know if I'm doing the things in a wrong way.
I have the following project structure (a pretty standard one):

then I've configured javah as external tool like this:

When I run the external tool on OSManager4Windows.java I was expecting to find it_univpm_quickbackup_utils_OSManager4Windows.h in bin/it/univpm/quickbackup/utils/ but it is inside bin. Is that correct? Shouldn't be inside the same directory of the .class file?