RFR: 8244297: memory leak test utility [v4]

[Kevin Rushforth]

On Wed, 30 Sep 2020 11:43:34 GMT, Florian Kirmaier <fkirmaier at openjdk.org> wrote:

>> Tests fail to compile, please correct the import.
>> Pointed error in `ToggleButtonTest`, please check other files also when correcting this.
>
> I've fixed the wrong imports. It would be great if Travis could check whether all systemTests are compiling.

Thanks, we'll review it now.

Btw, we don't plan to hook up Travis, but instead will be looking at GitHub actions now that the `jdk` project is using
them successfully.

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PR: https://git.openjdk.java.net/jfx/pull/204