Declaring Embed in actionscript breaks swf

I am compiling action-script project using Flex SDK 4.6 and when I declare following in my class file it compiles and generates swf file just fine . But where swf is embedded when I right click it shows "Movie Not Loaded" . I am not even using it yet in actionscript declaration itself breaks swf . What can be causing this ?

    publicclassTestEmbedextendsSprite{
     [Embed(source="swf_images/TestImage.png")]
      privatevar embeddedImage :Class;  

     publicfunctionTestEmbed(){
          var mBall1:Bitmap=new embeddedImage()asBitmap;
          addChild(mBall1);
          }  
     }