Backport Candidate: JDK-8332271/ JDK-8353950 (PR #24614)

[Matthias Bläsing]

Hi,

Am Dienstag, dem 10.06.2025 um 21:43 -0700 schrieb Philip Race:
> It seems to me like a candidate based on being a recent 'regression' and 
> the use case and potential impact.
> I just have not looked at or tested the code myself, and clipboard tests 
> are at least in some part manual,
> so I don't know how well it has been tested.
> 
> Did anyone run at least the automated jtreg tests for you on our CI system ?

to my knowledge this was not yet done.

I ran the jtreg tests from `test/jdk/java/awt/Clipboard` locally
including the new crash reproducer. In addition I used the application
level reproducer to verify that the issue also covers that. That test
copy-and-pastes text between NetBeans and notepad in a loop, while
adding the loop index on each invocation. That looked sane for 20-100
iterations.

> On 6/10/25 12:54 PM, Matthias Bläsing wrote:
> > [Backport proposal https://github.com/openjdk/jdk/pull/24614]
> > 
> > JDK-8332271: Reading data from the clipboard from multiple threads crashes the JVM (P3)
> > JDK-8353950: Clipboard interaction on Windows is unstable (P4)

Thanks for considering

Matthias