RFR: 8317287: [macos14] InterJVMGetDropSuccessTest.java: Child VM: abnormal termination

[null]

The root cause of the bug is because mousePress() method is invoked before mouseMove() event is completely processed causing the drag & drop behavior not being able to be recognized properly. This in turn makes the method dragSourceListener.isDropFinished() returns false and fail the test. To fix this, setAutoWaitForIdle(true) and Thread.Sleep is called to make sure the mouseMove() event is processed completely before moving to execute the mousePress() method.

JBS issue: [JDK-8317287](https://bugs.openjdk.org/browse/JDK-8317287)

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Commit messages:
 - [macos14] InterJVMGetDropSuccessTest.java: Child VM: abnormal termination

Changes: https://git.openjdk.org/jdk/pull/16396/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16396&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317287
  Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/16396.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16396/head:pull/16396

PR: https://git.openjdk.org/jdk/pull/16396