On Mon, 27 Apr 2026 08:08:42 GMT, Markus Grönlund <[email protected]> wrote:
> > Attempting to add an injected field did not work because you cannot reflect > > an injected field, not even using Unsafe. So I cannot read the value of an > > injected field from Java. Either we go with the encoding in the slot field, > > or I will add a separate non-final field "jfrEpoch" to > > java.lang.reflect.Field. Thoughts? > > I assume an injected field would be feasible if all the access were via JVM > funtions rather than reflect/Unsafe but that would add complexity as it might > end up needing instrinics. In that case, an explicit field would be better so > the slot field is not overridden. Yes, we can do an intrinsic too, if we really want to tuck this away. I can look into that alternative as well, since I already built similar intrinsics to read the jfrEpoch, which are currently in use for virtual threads. ------------- PR Comment: https://git.openjdk.org/jdk/pull/30922#issuecomment-4325364313
