[jdk11u-dev] RFR: 8261404: Class.getReflectionFactory() is not thread-safe

[María Arias de Reyna]

This is a backport of https://bugs.openjdk.org/browse/JDK-8261404
8261404: Class.getReflectionFactory() is not thread-safe

Original commit https://github.com/openjdk/jdk/commit/905b7639424a0fa80f81f734f6fdae1b5018a14a

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Commit messages:
 - Backport 905b7639424a0fa80f81f734f6fdae1b5018a14a

Changes: https://git.openjdk.org/jdk11u-dev/pull/2554/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2554&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8261404
  Stats: 7 lines in 1 file changed: 2 ins; 1 del; 4 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2554.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2554/head:pull/2554

PR: https://git.openjdk.org/jdk11u-dev/pull/2554