[jdk21u-dev] RFR: 8323243: JNI invocation of an abstract instance method corrupts the stack

[Aleksey Shipilev]

Clean backport to fix the JNI corner case. Looks simple and safe.  

Additional testing:
 - [x] New regression test fails without the fix and passes with it
 - [ ] Linux AArch64 server fastdebug, `tier{1,2,3,4}`

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Commit messages:
 - Backport 71d9a83dece7eb4bdb6ffdd9caf14a1348045ce0

Changes: https://git.openjdk.org/jdk21u-dev/pull/202/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=202&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8323243
  Stats: 159 lines in 4 files changed: 159 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/202.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/202/head:pull/202

PR: https://git.openjdk.org/jdk21u-dev/pull/202