Instantiating a class with a generic type parameter in java

I am trying to write a factory class to return an instance of a class with a generic parameter type. I think this can be done using reflection but I am confused as to how.

Here is an example of what I am trying to do.

 public class GenericObjectFactory {

 public GenericObject<?> getGenericObject(Class clazz){
 // I want to return a new instance here of the generic object with type parameter clazz. So something like this...
 return new GenericObject<clazz>();

}

anyone any idea how it's done?

I know I can instantiate clazz with newInstance but I want GenericObject. ie getGenericObject (string.getClass()) would return a new GenericObject < String >();

Sorry this post is a bit rambly. I hope it makes sense. Thanks in advance.

Tracey