Swedish collation rules have been modified to reflect the modern sorting for the language. Collation in Swedish now distinguishes 'v' and 'w' as well as sorting alphabetically. For example, `{"wb", "va", "vc"}` is sorted as `{"va", "vc", "wb"}` with this change, whereas previously it was sorted as `{"va", "wb", "vc"}`. In order to specify the old collation, use the `co` Unicode identifier in the locale. Refer to [Support variant collations](https://bugs.openjdk.org/browse/JDK-8307547) for more detail.