"Don't know how to REQUIRE JSS" when loading Lisp code from Java

Hello,

I'm using the following code to execute a Lisp function:

#+BEGIN_SRC java

public class Call { public static void main(String [] args) { Call thisObject = new Call(); Interpreter interpreter = Interpreter.createInstance(); interpreter.eval("(load "lispfunctions.lisp")"); org.armedbear.lisp.Package defaultPackage = Packages.findPackage("CL-USER"); Symbol voidsym = defaultPackage.findAccessibleSymbol("SAY-HELLO"); Function voidFunction = (Function) voidsym.getSymbolFunction(); LispObject result = voidFunction.execute(new JavaObject(thisObject)); } }

#+END_SRC

The Lisp side:

#+BEGIN_SRC lisp ;;; lispfunctions.lisp (java:add-to-classpath "/opt/abcl-bin-1.4.0/abcl-contrib.jar")

(require :jss)

(defun say-hello () "Hi!")

#+END_SRC

It works without the (requirese :jss); whenever I try to use it I get:

#<THREAD "main" {C7BBB6C0}>: Debugger invoked on condition of type SIMPLE-ERROR Don't know how to REQUIRE JSS.

Any pointers? Thanks!