*/
public void testContexts2() {
RhinoScript ri = new RhinoScript(scriptName, script);
Map<String, Object> contexts = new HashMap<String, Object>();
contexts.put("a", "petra");
Object x = ri.invoke("getA", null, contexts);
assertEquals("petra", x);
try {
x = ri.invoke("getA", null, null);
assertTrue("expected ReferenceError", false);