But they own Java.

I'm sorry, but as a Java developer seeing Oracle pick it (anything Java) up like a dead fish and try to see who they can smack big money out of is horrifying.

It goes against the culture of Java that I'm familiar with. I've been learning other languages on the JVM for the express purpose of being ready to jump ship if I need to with those other languages. (Jython can jump to Python, JRuby to Ruby, Java to C#/C++, and Scala can be mapped to something I'm sure).