On Wed, 4 May 2022 23:29:53 GMT, Maurizio Cimadamore <mcimadam...@openjdk.org> wrote:
>> Good points. Regarding `ClassLoader` being null, I think we can still return >> something using the `BootLoader`'s `NativeLibraries` object - that would >> allow this method to be called internally. @mlchung Can you please confirm? >> >> As for the caller sensitive having no real caller (e.g. because method is >> called directly from native code), I think we should add a check in >> `Reflection::ensureNativeAccess`. Few weeks ago I verified that adding such >> a check does not compromise upcall stub created via the Linker interface >> (e.g. a Java upcall might require to perform restricted operations - but >> those operation always happen inside the upcall MH, which is always >> associated with some class). > > Another option would be to treat calls to `ensureNativeAccess` with `null` > caller class as coming from unnamed module. Looking deeper, `System::loadLibrary` seems to search the boot loader libraries when invoked with a `null` caller class, so replicating that behavior should be safe. ------------- PR: https://git.openjdk.java.net/jdk/pull/7888
