> It is not possible in wicket...
> You can have at most one wicket:child tag per page...
> This is because Java does not support multiple inheritance...
> This question has been posted on the mailing list earlier. Give a
search
> to find out more about this subject.

I don't believe that this is an issue that requires a multiple
inheritance.

I see individual <wicket:child> sections as more like abstract/(virtual)
methods whose implementation is not provided in the base class but it is
provided in a derived class. Now Java supports multiple abstract methods
in a class without a problem. All that is needed is a way to name the
individual <wicket:child> sections so that wicket knows which bits in
the derived markup are providing the implementations via <wicket:extend>
(which could refer to the child section they are 'overriding'. 

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