You do not need to keep a reference to the parent, that's what SUPER does for you. In the Lite.pm constructor,
drop the parent and in the methods, just
$self->SUPER::chkAccessRight
that construct will move up the inheritance tree to find the next chkAccessRight method. This
construct
$self->{Parent}->SUPER::chkAccessRight
asks the *parent* object to move up it's hierarchy to find the method. Since the parent is the base, there's nowhere to
move up to.
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