RFR: 8273506: java Robot API did the 'm' keypress and caused /awt/event/KeyEvent/KeyCharTest/KeyCharTest.html is timing out on macOS 12 [v2]

[Alexander Zuev]

> Clear the kCGEventFlagMaskSecondaryFn flag if it is set before posting keyboard events to the system queue.

Alexander Zuev has updated the pull request incrementally with one additional commit since the last revision:

  Adding test case.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8320/files
  - new: https://git.openjdk.java.net/jdk/pull/8320/files/94dd52e3..1be2fc50

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8320&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8320&range=00-01

  Stats: 100 lines in 1 file changed: 100 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8320.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8320/head:pull/8320

PR: https://git.openjdk.java.net/jdk/pull/8320