Out of memory exception while trying to pass an object to a groovy template Play Framework 1.2

Question

I have this method in controller:

public static void show(Long id)
{
    Article article = Article.findById(id);
    //List<Review> reviews = Review.find("byArticle", article).fetch();
    render(article);
}

It passes on the article object to template & the template tries to render various fields in the article object.

And then I get outofMemory exception, where am I going wrong ?

This is the error message shown by Play Framework:

RuntimeException occured : java.lang.OutOfMemoryError: GC overhead limit exceeded