RFR: 8286172: Create an automated test for JDK-4516019

[Phil Race]

On Thu, 5 May 2022 06:58:26 GMT, Srinivas Mandalika <smandalika at openjdk.org> wrote:

> Create an automated test for [JDK-4516019](https://bugs.openjdk.java.net/browse/JDK-4516019)
> 
> Clicking on the increment/decrement buttons of the spinner does not install focus on the spinner or one of its focusable children.
> 
> The test validates the same.
> 
> This review is for migrating tests from a closed test suite to open.
> 
> Testing:
> The test ran successfully on Mach5 with multiple runs (30) on windows-x64, linux-x64 and macos-x64.

Also you are doing the same thing I've told others not to - look at the path name

test/jdk/javax/swing/4516019/JSpinnerFocusTest.java

what is the point of 4516019 ? Do NOT create an extra directory for no reason.
especially one just numbered for a bugid
and in this case this test should go in the pre-existing JSpinner directory !

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Changes requested by prr (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8546