Passing custom functional object in js via addJavascriptInterface
<p>Is it possible s.t arbitrary functional objects in js are passed to Java side, java can call that js object?</p>

<p>for example, (access is function that already registered)</p>

<pre><code>access(function(blabla){
    ...
});
</code></pre>

<p>Are there any great techniques that can deal with callback function in java?</p>
