[jdk11u-dev] RFR: 8222799: java.beans.Introspector uses an obsolete methods cache

[Basil Crow]

Hi all,

This pull request contains a backport of JDK-8222799 (openjdk/jdk at 921b46738e0).

The only merge conflicts in `Introspector.java` were copyrights and imports, which were trivially fixed.

The commit being backported was authored by @mrserb on October 20, 2020, and was reviewed by `prr`.

See https://github.com/openjdk/jdk11u-dev/pull/1103#pullrequestreview-983336877 for the motivation for this backport; namely, it would be cleaner to backport this first in order to then be able to backport JDK-8231454 without conflicts.

Thanks!

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Commit messages:
 - 8222799: java.beans.Introspector uses an obsolete methods cache

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/1106/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=1106&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8222799
  Stats: 43 lines in 2 files changed: 6 ins; 25 del; 12 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/1106.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/1106/head:pull/1106

PR: https://git.openjdk.java.net/jdk11u-dev/pull/1106