I need to add certificate in .cer format to into BKS key store
It was described on SO here
How to convert .cer to BKS
I did next, create a dir and put in
Thanks to @Amod Gokhale
So, eventually I moved my certificate and BouncyCastle files to another dir (in my case C:\LocalGit\certificate)
and I got this .bks file without issues