Assess null-safety semantics for newly annotated packages

[sbrannen]

This is a follow up to #30056/#30069.

[sbrannen]

• Blocked until Ensure all packages declare package-info.java with null-safety annotations #30056 is completed

[sbrannen]

The packages to assess can be determined by analyzing commit 99e54fe.

[edyda99]

Hi again, can I help you with this one?

[sbrannen]

Hi @edyda99,

Thanks for the offer, but this issue is better suited for core team members.

[sbrannen]

@jhoeller, I took a first pass at updating our null-safety declarations (see recent commits on main).

I have now co-assigned this issue to you so that you can take another pass (and/or review the changes I made) before the 6.0.7 release.