IMHO, one of the biggest barriers right now for developers is getting "pigeonholed" in the hiring process by hiring managers and recruiters into thinking that programming skills in one language don't translate to others. The automated filtering of resumes/applications only makes the issue worse.

I think my reply to your comment would have to be something like:

  * it depends what type of project experience is required (desktop app, mobile app, web server, embedded device, etc)
  * it depends where the job is
  * it depends what sector you are talking about (governments tend to choose Microsoft languages more than startups)
  * it depends what age range of applicants is expected (I'd wager Java has is a decent bias towards older programmers who probably wouldn't get hired at most companies I've interviewed at)

How many new businesses are built around Java or C#?