RFR: JDK-8323617 : Add missing null checks to GetMousePositionWithPopup.java test

[Damon Nguyen]

On Thu, 11 Jan 2024 20:04:56 GMT, Harshitha Onkar <honkar at openjdk.org> wrote:

> While investigating a macOS 14 issue noticed missing null checks in java/awt/Mouse/GetMousePositionTest/GetMousePositionWithPopup.java
> 
> The missing null check will cause an NPE in finally block when frame2 is not created in the event that mouse move is not received.
> 
> PS: This test passes on the latest version of macOS (14.2)

Logical addition. Tested and still works as expected

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Marked as reviewed by dnguyen (Committer).

PR Review: https://git.openjdk.org/jdk/pull/17380#pullrequestreview-1818879022