How are class types passed to JSNI code in GWT?

Question

I am wrapping a JS library and one method takes a class/prototype as a parameter. ie:

installPlugin(Prototype)

How would the wrapped JSNI function for this method look?

public final void native installPlugin(Class<?> clazz) /*-{
    this.installPlugin(clazz);
}-*/;

This isn't correct but along the lines of what I want to achieve.

Answer 1

This is not possible. In GWT, objects know their class (returned by getClass()) but Class instances don't have a reference to the constructors / prototype that would allow creating instances of that class.

If you can pass an instance of the class instead, you should be able to just use obj.prototype. It wouldn't work in DevMode though, where Java objects are opaque handles when passed to JSNI.