2018/5/16 18:31:15 -0700, marti...@google.com:
> I've been confused by NULL vs null for years.
That’s because `NULL` in ReferenceQueue.java refers to the singleton
object `ReferenceQueue.NULL`, not the null value. See the long comment
at the top of Reference.java for an explanation.
To improve this you could change mentions of `NULL` in the comments to
`ReferenceQueue.NULL`, but changing them to `null` would be incorrect.
> 8203327: Small cleanups in java.lang.ref
The other changes look fine.