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

[SendaoYan]

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.

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Commit messages:
 - 8366695: Test sun/jvmstat/monitor/MonitoredVm/MonitorVmStartTerminate.java timed out

Changes: https://git.openjdk.org/jdk/pull/27064/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27064&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8366695
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/27064.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27064/head:pull/27064

PR: https://git.openjdk.org/jdk/pull/27064