/ class ScriptAPI

// These lines set the log method in the JavaScript
// Any Java classes or methods can be accessed with **Packages** prefix
private static final String RHINO_LOG = "var log = Packages.io.vec.ScriptAPI.log;";
public static void log(String msg) {
    android.util.Log.i("RHINO_LOG", msg);
}

public void runScript() {
    // Get the JavaScript in previous section
    String source = getScriptFromServer();
    String functionName = "hello";
    Object[] functionParams = new Object[] { "Android" };

    // Every Rhino VM begins with the enter()
    // This Context is not Android's Context
    Context rhino = Context.enter();

    // Turn off optimization to make Rhino Android compatible
    rhino.setOptimizationLevel(-1);
    try {
        Scriptable scope = rhino.initStandardObjects();

    // This line set the javaContext variable in JavaScript
    ScriptableObject.putProperty(scope, "javaContext", Context.javaToJS(androidContextObject, scope));

        // Note the forth argument is 1, which means the JavaScript source has
    // been compressed to only one line using something like YUI
        rhino.evaluateString(scope, RHINO_LOG + source, "ScriptAPI", 1, null);

        // We get the hello function defined in JavaScript
        Function function = (Function) scope.get(functionName, scope);

    // Call the hello function with params
        NativeObject result = (NativeObject) function.call(rhino, scope, scope, functionParams));
    // After the hello function is invoked, you will see logcat output

    // Finally we want to print the result of hello function
    String foo = (String) Context.jsToJava(result.get("foo", result), String.class);
    log(foo);
    } finally {
    // We must exit the Rhino VM
        Context.exit();
    }
}