If I have 100 resumes, and 50 of them list Java first, and 50 of them list Java last, which pool of 50 am I most likely to find someone who knows and doesn't hate working in Java?

You're going to select 10 people out of that list of 100 because you don't have time to call everyone for three weeks to evaluate their skill.

You've also got only two hours to look through all 100 of those resumes today. You're spending about a minute and a half looking at each resume. How are you going to evaluate someone for a Java backend position who's last job was in C# and they list Java last in the list of languages they know?