[cwzwarich]

Scheme doesn't have that many distinguishing features:

1) Garbage collection

2) Dynamic typing

3) No distinction between primitive values and general values - a value can be used everywhere

4) Lexical closures and higher-order functions

5) A hygienic macro system

6) First-class continuations

7) Space safety guarantees for tail calls ('tail call optimization')

8) A numeric tower

9) S-expression syntax

10) A focus on cons cells and lists as primitive data structures

There's probably something I'm missing, but the only feature that Java shares is the first.