RFR: 8344034: Remove security manager dependency in Serialization [v2]

[Roger Riggs]

> After [JDK-8338411](https://bugs.openjdk.org/browse/JDK-8338411), Serialization implementation dependencies on SecurityManager, doPrivildged, and AccessController are removed.
> Some refactoring to cleanup the remaining code is expected.

Roger Riggs has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 225 commits:

 - JDK-8344034: Remove security manager dependency in Serialization
 - Merge remote-tracking branch 'jdk-sandbox/jep486' into JDK-8338411
 - Merge branch 'master' into jep486
 - Move remaining JEP 486 failing tests into correct groups.
 - Move JEP 486 failing tests into hotspot_runtime group.
 - test/jdk/java/rmi/server/RMIClassLoader/spi/DefaultProperty.java failing
 - Merge branch 'master' into jep486
 - Merge branch 'master' into jep486
 - Merge remote-tracking branch 'jdk-sandbox/jep486' into JDK-8338411
 - Merge branch 'master' into jep486
 - ... and 215 more: https://git.openjdk.org/jdk/compare/d0077eec...b45a76bf

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

Changes: https://git.openjdk.org/jdk/pull/22041/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22041&range=01
  Stats: 69303 lines in 1891 files changed: 2482 ins; 62889 del; 3932 mod
  Patch: https://git.openjdk.org/jdk/pull/22041.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22041/head:pull/22041

PR: https://git.openjdk.org/jdk/pull/22041