How about “Oak”?
I had to look that up. Not very inspiring, but better than "Java".
It's already annoying that coffee addicts refer to coffee as "Java", but then they have to name a programming language the same thing and actually make a logo for it depicting a steaming cup of coffee. And then it becomes ubiquitous so you can't avoid hearing about it all the time and seeing that logo and you might actually have to use it to write programs.