RFR: 8343039: Remove jdk.internal.misc.InternalLock and usages from java.io [v3]

[Brian Burkhalter]

> Uses of `InternalLock` are removed and `synchronized` is reinstated.

Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:

  8343039: Remove JavaIOPrint{Stream,Writer}Access and the use thereof

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22048/files
  - new: https://git.openjdk.org/jdk/pull/22048/files/21c9c5e2..d3d1e3a5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22048&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22048&range=01-02

  Stats: 113 lines in 6 files changed: 0 ins; 111 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/22048.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22048/head:pull/22048

PR: https://git.openjdk.org/jdk/pull/22048