<Swing Dev> RFR: 8197825: [Test] Intermiitent timeout with javax/swing JColorChooser Test [v3]

[Alexey Ivanov]

On Fri, 29 Jan 2021 04:03:29 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> It seems "m_breakMessageLoop" is never true for unsuccessful run even though AwtToolkit::QuitMessageLoop finish execution (where m_breakMessageLoop is set to true),
> so AwtToolkit::MessageLoop never ends and shutdown hook gets called where tk.isDisposed() loop start spinning. seems to be some timing issue.

Then this does look like a synchronisation problem. One thread changes the value of `m_breakMessageLoop` but another doesn't see it's changed. Should `m_breakMessageLoop` be declared as `volatile`?

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PR: https://git.openjdk.java.net/jdk/pull/2220