[jdk21u-dev] RFR: 8315130: java.lang.IllegalAccessError when processing classlist to create CDS archive [v4]

[Timofei Pushkin]

> Fixes a error which significantly complicates the use of static CDS in some applications with user-provided class loaders (workarounds require either manually editing the generated CDS classlist which is error-prone, or switching to dynamic CDS which has its own implications, or rewriting the application which is not always possible).
> 
> The conflicts were trivial: a few neighboring methods missing from this version and not directly related to the change.
> 
> The PR depends on #1833 and #1834 though it can be rewritten not to if needed.
> 
> Testing besides the CI (performed on macos/arm64): `runtime/cds`, a minimal reproducer app described in the original bug report.

Timofei Pushkin has updated the pull request incrementally with one additional commit since the last revision:

  Make an assert less general

-------------

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/1835/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/1835/files/ceab09aa..f2249d81

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1835&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1835&range=02-03

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1835.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1835/head:pull/1835

PR: https://git.openjdk.org/jdk21u-dev/pull/1835