Description

This removes the nullOk parameter from Actions.invoke, and adds an Actions.maybeInvoke function. The difference is that invoke will now always (in debug mode) throw if an enabled action isn't found, and maybeInvoke will return null if an enabled action isn't found. The invoke function can still return null as the result of the invocation, though, so I purposely didn't change the return value to Object from Object?.

Related Issues

• Fixes Some widgets' nullOk parameters are inconsistently applied. #68637

Tests

• Added tests for maybeInvoke, updated invoke tests.

Breaking Change

• Yes, this is a breaking change that will require a migration guide.
  • I wrote a design doc
  • I submitted it for input from the developer relations team, specifically from: @redbrogdon
  • I wrote a migration guide: In Adding eliminating-null-parameters migration guide website#4921