RFR: 8347937: Canvas pattern test fails and crashes on WebKit 620.1

[Kevin Rushforth]

On Fri, 21 Mar 2025 10:54:58 GMT, Sergey Nazarkin <snazarki at openjdk.org> wrote:

> I see CanvasTest failure. But I guess it is unrelated
> 
> ```
> CanvasTest > testCanvasPattern() FAILED
>     org.opentest4j.AssertionFailedError: First rect top-left ==> expected: <255> but was: <0>
> ```

@snazarkin This failure is unexpected. We ran a CI build and the test passes for us. How did you run the test?

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PR Comment: https://git.openjdk.org/jfx/pull/1740#issuecomment-2743252976