Java breed basics?

[dannifer]

I'm trying to find info about Java chickens. There doesn't seem to be a lot on the internet just by googling. And I have run across a couple threads on here about them, but they are really hard to search through! I'm wanting to know the basics about the breed - how good of layers they are (about how many eggs/year), temperament, size, are they cold and heat hardy? Can anyone answer these for me? I have a pullet that is a mix of Java and I think Copper Maran. Thank you!