why i can't see continueDragging method of gwt DialogBox?

in here http://www.gwtproject.org/javadoc/latest/com/google/gwt/user/client/ui/DialogBox.html#continueDragging(com.google.gwt.event.dom.client.MouseMoveEvent), Google said that there's continueDragging method to capture the event when user's moving the dialogbox. 

But i couldn't see this method in my GwtP in eClipse?

DialogBox myD=new DialogBox();

myD.

In eClipse, after typing dot after myD ther only 2 methods starting with c pop up. They are center() & clear(). 

Where is the  continueDragging method ?

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