[crac] RFR: 8349365: [CRaC] Handle javaagent adding jars to boostrap/system classpath [v2]

[Radim Vansa]

> File descriptors owned by `ClassPathEntry` in `ClassLoader` are ignored during checkpoint.

Radim Vansa has updated the pull request incrementally with one additional commit since the last revision:

  Fixup

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

Changes:
  - all: https://git.openjdk.org/crac/pull/201/files
  - new: https://git.openjdk.org/crac/pull/201/files/e599886e..5e7df115

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=crac&pr=201&range=01
 - incr: https://webrevs.openjdk.org/?repo=crac&pr=201&range=00-01

  Stats: 2 lines in 2 files changed: 1 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/crac/pull/201.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/201/head:pull/201

PR: https://git.openjdk.org/crac/pull/201