How to manipulate a javascript object in java?

Hi, I am fiddling with the java scripting interface. As I understand the rhino engine is packaged with the jdk but what I don't understand is how does one reconcile the objects one gets from their engine (e.g. sun.org.mozilla.javascript.internal.ScriptableObject) versus the ones in the rhino api (e.g. org.mozilla.javascript.ScriptableObject)?
Is the one in the jdk heavily modified or wrappered up to suit their javax.scripting interface?
More specifically, how do I manipulate javascript objects from java?
e.g. suppose I have this java code:
ScriptEngineManager mgr = new ScriptEngineManager();
ScriptEngine js = mgr.getEngineByName("js");
jsEngine.eval("var foo = { x : 1, y : 'hello', z : false };");
Object o = jsEngine.get("foo");Now o is instanceof sun.org.mozilla.javascript.internal.NativeObject, which is a subclass of a bunch of other classes in the s.o.m.j.i namespace. Being internal I can't use these directly.
Looking at the Rhino API obviously you normally get a org.mozilla.javascript.ScriptableObject and can call the .get() .getIds() methods. But I don't know how to translate the objects I am getting in my actual java code which uses the jdk engine into org.mozilla.javascript objects.
Is this even possible? Am I misunderstanding something completely? Should I just be using the rhino js jar and not the javax.scripting interface? If so, for what reason is the javax.scripting interface implemented?

Assuming that you DO want a deep copy, begin with a constructor that takes another hand.
public Hand( Hand h ) { ...Then for each instance variable, within that constructor:
this.instVar0 = h.instVar0;
this.instVar1 = h.instVar1;
. . .And last, for every reference, make sure there is a constructor (or copy method for arrays) that itself makes a deep copy:
this.ref0 = new Ref0Type( h.ref0 );

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Hi guys and girls,
I have CMP managed java project that I am trying to
create a menu for. Each time I create a new javascript
object I am getting the error "objectname is
undefined". Below is a code snipset followed by the
error message I get when I try displaying the jsp.
<head>
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I supspect that the src=menu.js reference is not
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