[jdk21u-dev] RFR: 8334870: javac does not accept classfiles with certain permitted RuntimeVisibleParameterAnnotations and RuntimeInvisibleParameterAnnotations attributes

Fri Jun 27 16:23:01 UTC 2025

This change allows javac to tolerate `RuntimeVisibleParameterAnnotations` and `RuntimeInvisibleParameterAnnotations` that do not contain entries for all parameters, or that contain additional entries.

Currently class reading crashes with an `ArrayIndexOutOfBoundsException` if the attributes contain fewer than the expected number of parameters, which leaves method symbols in an invalid state and causes the crash discussed in [JDK-8359336](https://bugs.openjdk.org/browse/JDK-8359336).

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Commit messages:
 - Handle changes to classfile API
 - Backport 5e822c24bb42e9027c8d9090d498bca7125d1963

Changes: https://git.openjdk.org/jdk21u-dev/pull/1930/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1930&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8334870
  Stats: 1249 lines in 6 files changed: 859 ins; 382 del; 8 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1930.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1930/head:pull/1930

PR: https://git.openjdk.org/jdk21u-dev/pull/1930