setRequired() final?

[Kaspar Fischer]

I have a form component to select items and would like to add lower  
and upper constraints on the number of items that need to be set by  
the user. I added setMin() and setMax() methods and would like to  
override setRequired() to call setMin(1). However,  
FormComponent.setRequired is final. Is there a particular reason for  
this?

Thanks, Kaspar
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