Which JVM languages are stackless?

Which Turing-complete language implementations on the JVM do not use the JVM stack as a call stack?

(I ask because I want to implement coroutines between Scala and another language in the same thread.)

• Morpho
• SISC (Second Interpreter of Scheme Code)

Implementations which once did not use the JVM stack, but in their latest versions, do:

• LuaJ, prior to version 2
• JRuby (in its experimental YARV bytecode interpreter, since removed)