Create rules for the trailing slash matching configuration

[jmle]

According to the migration guide:

As of Spring Framework 6.0, the trailing slash matching configuration option has been deprecated and its default value set to false. This means that previously, the following controller would match both "GET /some/greeting" and "GET /some/greeting/" [...]

Investigate and create rules if necessary.

In the rule description and message, try to be as verbose and clear as possible. Code examples are always welcome and useful. Feel free to use markdown syntax for these.

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[jmle]

Need to investigate the three proposed solutions. The last one seems to be straightforward to implement and show a snippet.