Server side freezes on client widget

I created this widget where I drag icons within a gwt panel/drawing area. If i drag too much or too long my server side components are frozen. Is it waiting for the client side to finish?

What do you mean by “server side components are frozen”? Components can’t really freeze. The things that could freeze is the server side thread of the application or the entire server but i don’t think that’s the case here…

The client side code of the widget takes a while to complete after I’ve moved my objects/icons within panel/drawing area of the widget so if I try to do anything else in my GUI it doesn’t react to anything until all the client side interactions have finished.