[jdk21u-dev] RFR: 8342782: AWTEventMulticaster throws StackOverflowError using AquaButtonUI

[Satyen Subramaniam]

Backporting JDK-8342782: AWTEventMulticaster throws StackOverflowError using AquaButtonUI. Refactoring `AWTEventMulticaster` to avoid stack overflow error when using AquaButtonUI. Ran GHA Sanity Checks, local Tier 1 and 2, and new test. Patch is clean.

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Commit messages:
 - Backport 5b703c702323bc50452d3f6fd27b165b74006c3e

Changes: https://git.openjdk.org/jdk21u-dev/pull/1810/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1810&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342782
  Stats: 157 lines in 2 files changed: 156 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1810.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1810/head:pull/1810

PR: https://git.openjdk.org/jdk21u-dev/pull/1810