JEP 309 introduced Dynamic Class-File Constants, which at a glance seems useful to Scala. Especially since in the description it's mentioned:

We seek to reduce the cost and disruption of creating new forms of materializable class-file constants, which in turn offers language designers and compiler implementors broader options for expressivity and performance.

Since we are planning to update to a newer JDK at an unspecified future I hope we can figure out if this is in any way useful for us.

And if we can actually use them or whether it will be impossible for us.

Introduced in JDK 11