jQuery JSON response always triggers a ParseError

I am trying to preform some basic operations with jQuery and JSON. Presently having difficulty with jQuery accepting JSON response from my play framework application. Below is a simplified version of the code that still produces the error.

Playframework vs Ruby On Rails

Yet another LanguageX vs LanguageY question....

Why does java wait so long to run the garbage collector?

I am building a Java web app, using the Play! Framework . I'm hosting it on playapps.net . I have been puzzling for a while over the provided graphs of memory consumption. Here is a sample:

Render images by java code or read images from a static path?

Here's my code:

1.Java Code:

public static void getImg(Long itemId) {

  try {

    Item item = Item.findById(itemId);

    if (item.img != null && item.img.getFile() != null{

      response.setContentTypeIfNotSet(item.img.type());

      renderBinary(item.img.get());

    }

  } catch (Exception e) {

    Logger.error("Can't find image,itemId = " + itemId);

  }

} 



html : < img src="@{{ Items.getImage(123)}}"/>