require ClassB.pm;
    $objB = ClassB->new();

##</code><code>##

Subroutine foo redefined at /XXX/lib/YYY/ClassB.pm line 17.
Subroutine bar redefined at /XXX/lib/YYY/ClassB.pm line 23.
Subroutine baz redefined at /XXX/lib/YYY/ClassB.pm line 30.