[javajosh]

The benefits from immutability are well-known outside the functional world. Josh Bloch harped on that (and rightly so) quite a lot in "Effective Java".

Immutability in Java is great, and doesn't have a functional corequisite.

[flatline3]

Immutability generally requires and/or benefits from programming in a functional style.

[javajosh]

Now you are trolling, but since the community has long since moved past this news item, I'm just going to point it out and move on myself.