RFR: 8323243: JNI invocation of an abstract instance method corrupts the stack [v4]

[David Holmes]

> See JBS for details.
> 
> TL;DR - if an instance method is abstract then JNI front-end should throw AbstractMethodError.
> 
> Testing:
>   - new regression test
>   -  tiers 1-3 (sanity)
> 
> Thanks.

David Holmes has updated the pull request incrementally with one additional commit since the last revision:

  More reviewer feedback.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/17337/files
  - new: https://git.openjdk.org/jdk/pull/17337/files/3d40bc69..98b3d692

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17337&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17337&range=02-03

  Stats: 7 lines in 1 file changed: 0 ins; 1 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/17337.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17337/head:pull/17337

PR: https://git.openjdk.org/jdk/pull/17337