"""But then when I thought about it, it seems that Java is everywhere you look these days, even if it isn't called Java (such as Red Hat's Ceylon language and Android's Dalvik virtual machine). """

Actually, it's mostly Java itself, which is huge in the enterprise/banking/etc world.

I highly doubt that Android (Davlik) jobs make any difference in Java being #1 sought after Linux skill, and Ceylon even less so.

Job postings about Android mention itself specifically, not Linux, and job posts about Ceylon do not exist statistically speaking.