RFR: 8303680 VirtualFlow freeze

[Kevin Rushforth]

On Mon, 6 Mar 2023 16:04:02 GMT, Florian Kirmaier <fkirmaier at openjdk.org> wrote:

> Possible fix for VirtualFlow freeze.
> 
> I encountered the problem when experimenting with VirtualFlow.
> 
> Guess @johanvos should take a look.
> All tests are still green, so with some luck, this doesn't break anything but fixes some known and unknown bugs.

You will need to modify the title of this PR to match the JBS bug title (which I slightly modified to change "crashed" to "freezes" to better reflect the problem).

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PR: https://git.openjdk.org/jfx/pull/1052