RFR: 8370344: Arbitrary Java frames on stack during scoped access [v6]

[Martin Doerr]

On Wed, 5 Nov 2025 12:14:38 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

> > @JornVernee: The new test has failed on AIX:
> > ```
> > [fork] FATAL ERROR in native method: Wrong object class or methodID passed to JNI call
> > [fork] 	at jdk.internal.foreign.MemorySessionImpl.checkValidStateRaw(java.base at 26-internal/MemorySessionImpl.java:206)
> > [fork] 	at jdk.internal.foreign.MemorySessionImpl.checkValidState(java.base at 26-internal/MemorySessionImpl.java:215)
> > [fork] 	at jdk.internal.foreign.SegmentFactories.allocateNativeInternal(java.base at 26-internal/SegmentFactories.java:189)
> > [fork] 	at jdk.internal.foreign.SegmentFactories.allocateNativeSegment(java.base at 26-internal/SegmentFactories.java:181)
> > [fork] 	at jdk.internal.foreign.ArenaImpl.allocate(java.base at 26-internal/ArenaImpl.java:56)
> > [fork] 	at jdk.internal.foreign.ArenaImpl.allocate(java.base at 26-internal/ArenaImpl.java:31)
> > [fork] 	at java.lang.foreign.SegmentAllocator.allocate(java.base at 26-internal/SegmentAllocator.java:644)
> > [fork] 	at TestSharedCloseJvmti$EventDuringScopedAccessRunner.<clinit>(TestSharedCloseJvmti.java:75)
> > ```
> > 
> > 
> >     
> >       
> >     
> > 
> >       
> >     
> > 
> >     
> >   
> > Should I file a new issue?
> 
> Please file a new issue. We haven't seen this failure in our CI.

Filed [JDK-8371340](https://bugs.openjdk.org/browse/JDK-8371340). Is the test supposed to work on platforms other than linux? It passes on linux PPC64 (both, big and little endian).

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PR Comment: https://git.openjdk.org/jdk/pull/27919#issuecomment-3491224600