simple hello world fails - can't find LISP_HOME

I have built abcl from source
Then went to write my first simple hello world....

public class Tester {

    void simple() {
        Interpreter interpreter = Interpreter.createInstance();
        LispObject result = interpreter.eval("(format t \"Hello,
world!~%\")");
        System.out.println(result);
    }

    public static void main(String[] args) {

        new Tester().simple();
    }
}

The execution fails with the following.
ant -f C:\\git\\abcl -Djavac.includes=org/armedbear/lisp/util/Tester.java -
Dnb.internal.action.name=run.single
-Drun.class=org.armedbear.lisp.util.Tester run-single
init:
Deleting: C:\git\abcl\build\built-jar.properties
deps-jar:
Updating property file: C:\git\abcl\build\built-jar.properties
Compiling 1 source file to C:\git\abcl\build\classes
compile-single:
run-single:
LISP_HOME C:\git\abcl\src\org\armedbear\lisp\
java.lang.ClassNotFoundException: org.armedbear.lisp.SpecialOperators
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791)
at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2802)
at
org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225)
at org.armedbear.lisp.Function.<clinit>(Function.java:222)
at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
java.lang.ClassNotFoundException:
org.armedbear.lisp.AutoloadGeneralizedReference
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791)
at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2807)
at
org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225)
at org.armedbear.lisp.Function.<clinit>(Function.java:222)
at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
java.lang.ClassNotFoundException: org.armedbear.lisp.cxr
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791)
at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2808)
at
org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225)
at org.armedbear.lisp.Function.<clinit>(Function.java:222)
at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
java.lang.ClassNotFoundException: org.armedbear.lisp.Do
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791)
at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2809)
at
org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225)
at org.armedbear.lisp.Function.<clinit>(Function.java:222)
at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
java.lang.ClassNotFoundException: org.armedbear.lisp.dolist
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791)
at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2810)
at
org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225)
at org.armedbear.lisp.Function.<clinit>(Function.java:222)
at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
java.lang.ClassNotFoundException: org.armedbear.lisp.dotimes
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791)
at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2811)
at
org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225)
at org.armedbear.lisp.Function.<clinit>(Function.java:222)
at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
java.lang.ClassNotFoundException: org.armedbear.lisp.ash
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791)
at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2816)
at
org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225)
at org.armedbear.lisp.Function.<clinit>(Function.java:222)
at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
java.lang.ClassNotFoundException: org.armedbear.lisp.PackageFunctions
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791)
at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2818)
at
org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225)
at org.armedbear.lisp.Function.<clinit>(Function.java:222)
at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
Unable to determine LISP_HOME.
Unable to determine LISP_HOME.
org.armedbear.lisp.IntegrityError
ERROR placeholder called with arguments:
at org.armedbear.lisp.Primitives$pf_error.execute(Primitives.java:1577)
Failed to find loadable system file 'boot.lisp' in boot classpath.
at org.armedbear.lisp.Primitive.execute(Primitive.java:113)
at org.armedbear.lisp.Symbol.execute(Symbol.java:803)
at org.armedbear.lisp.Lisp.error(Lisp.java:383)
Failed to find loadable system file 'boot.lisp' in boot classpath.
at org.armedbear.lisp.Load.loadSystemFile(Load.java:322)
at org.armedbear.lisp.Interpreter.initializeLisp(Interpreter.java:172)
at org.armedbear.lisp.Interpreter.createInstance(Interpreter.java:72)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
Exception in thread "main" org.armedbear.lisp.IntegrityError
at org.armedbear.lisp.Primitives$pf_error.execute(Primitives.java:1577)
at org.armedbear.lisp.Primitive.execute(Primitive.java:113)
at org.armedbear.lisp.Symbol.execute(Symbol.java:803)
at org.armedbear.lisp.Lisp.error(Lisp.java:383)
at org.armedbear.lisp.Load.loadSystemFile(Load.java:322)
at org.armedbear.lisp.Interpreter.initializeLisp(Interpreter.java:172)
at org.armedbear.lisp.Interpreter.createInstance(Interpreter.java:72)
at org.armedbear.lisp.util.Tester.simple(Tester.java:34)
at org.armedbear.lisp.util.Tester.main(Tester.java:50)
C:\git\abcl\nbproject\build-impl.xml:1339: The following error occurred
while executing this line:
C:\git\abcl\nbproject\build-impl.xml:980: Java returned: 1
BUILD FAILED (total time: 0 seconds)