RFR: 8259021 avoid double racy reads from non-volatile fields of SharedSecrets [v2]

[Peter Levart]

> See: https://bugs.openjdk.java.net/browse/JDK-8259021
> See also discussion in thread: https://mail.openjdk.java.net/pipermail/core-libs-dev/2020-December/072798.html

Peter Levart has updated the pull request incrementally with one additional commit since the last revision:

  revert the unrelated change

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1914/files
  - new: https://git.openjdk.java.net/jdk/pull/1914/files/d3b4c98f..dd1447a0

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1914&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1914&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 2 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1914.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1914/head:pull/1914

PR: https://git.openjdk.java.net/jdk/pull/1914