But, if I try to take the same piece of code & plug it into our framework as a class method & invoke it on the same machine, the response is little bit different:

Your answer lies there. Your unnamed, unguessable framework is doing something wonky with your unshown code. If you show what you're doing, you're more likely to get help. Right now, unless someone happens to have have exactly the same experience, you probably have a better chance of winning the lottery. :)