RFR: 8366695: Test sun/jvmstat/monitor/MonitoredVm/MonitorVmStartTerminate.java timed out

[SendaoYan]

On Wed, 3 Sep 2025 03:18:28 GMT, SendaoYan <syan at openjdk.org> wrote:

> Hi all,
> 
> Test sun/jvmstat/monitor/MonitoredVm/MonitorVmStartTerminate.java create 10 java processes, and maybe this cause this test timed out when run this test with other jtreg tests concurrently. Though the run time statistics shows that it do not run timed out, but it did on the brink of timed out.
> 
> After JDK-8260555 change the default jtreg timeout factor from 4 to 1, I think it's necessary to change the timeout value in sun/jvmstat/monitor/MonitoredVm/MonitorVmStartTerminate.java from 120(default value) to 240, to avoid this test run timed out intermittently.

GHA report test jdk/jshell/ToolLocalSimpleTest.java fails on windows-x64, this fails has been recorded by [JDK-8366582](https://bugs.openjdk.org/browse/JDK-8366582), it's unrelated to this PR.

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PR Comment: https://git.openjdk.org/jdk/pull/27064#issuecomment-3248013271