The following test timed out in the Valhalla CI:

java/util/ResourceBundle/modules/basic/BasicTest.java

These timeouts only occurred on windows-x64 in -Xcomp configs.

Here's a log file snippet from the most recent timeout:

#section:junit
----------messages:(13/456)----------
command: junit BasicTest
reason: User specified action: run junit BasicTest
started: Sun Jan 11 14:43:35.852 UTC 2026
Mode: agentvm
Agent id: 90
Process id: 42736
[15:06:41.857] Timeout signalled after 1200 seconds
Timeout information:
[15:06:41.859] starting timeout handler action(s)
[15:11:37.707] timeout handler action(s) completed
--- Timeout information end.
finished: Sun Jan 11 15:11:37.824 UTC 2026
elapsed time (seconds): 1681.972
----------configuration:(16/1796)*----------

<snip>

Command line: [c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-27-valhalla+1-20\\windows-x64-debug.jdk\\jdk-27\\fastdebug\\bin\\java.exe -cp C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-27-valhalla+1-20\\src.full\\open\\test\\jdk\\java\\util\\ResourceBundle\\modules\\basic;C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d\\test\\lib;C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d\\java\\util\\ResourceBundle\\modules;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\jtreg.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\junit-platform-console-standalone-1.13.4.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\testng-7.3.0.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\jcommander-1.82.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\guice-5.1.0.jar -Xmx768m -XX:MaxRAMPercentage=4.16667 -Dtest.boot.jdk=c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk\\25\\37\\bundles\\windows-x64\\jdk-25_windows-x64_bin.zip\\jdk-25 -Djava.io.tmpdir=c:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\tmp -XX:+CreateCoredumpOnCrash -ea -esa -XX:+UseSerialGC -Xcomp -ea -esa -cp C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d\\extra_basic.jar -p C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d\\modsBasic -m test/jdk.test.Main es vi ]
Command line: [c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-27-valhalla+1-20\\windows-x64-debug.jdk\\jdk-27\\fastdebug\\bin\\java.exe -cp C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-27-valhalla+1-20\\src.full\\open\\test\\jdk\\java\\util\\ResourceBundle\\modules\\basic;C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d\\test\\lib;C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d\\java\\util\\ResourceBundle\\modules;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\jtreg.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\junit-platform-console-standalone-1.13.4.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\testng-7.3.0.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\jcommander-1.82.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\8.1\\1\\bundles\\jtreg-8.1+1.zip\\jtreg\\lib\\guice-5.1.0.jar -Xmx768m -XX:MaxRAMPercentage=4.16667 -Dtest.boot.jdk=c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk\\25\\37\\bundles\\windows-x64\\jdk-25_windows-x64_bin.zip\\jdk-25 -Djava.io.tmpdir=c:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\tmp -XX:+CreateCoredumpOnCrash -ea -esa -XX:+UseSerialGC -Xcomp -ea -esa -cp C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d\\extra_basic.jar -p C:\\sb\\prod\\1768131637\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_util\\classes\\3\\java\\util\\ResourceBundle\\modules\\basic\\BasicTest.d\\modsBasic -m test/jdk.test.Main es vi]
[2026-01-11T15:05:47.458636500Z] Gathering output for process 11900
[2026-01-11T15:05:47.459669300Z] Waiting for completion for process 11900
[2026-01-11T15:06:51.180995600Z] Waiting for completion finished for process 11900
Output and diagnostic info for process 11900 was saved into 'pid-11900-output.log'
locale = es, value = en: message
locale = vi, value = en: message
Exception in thread "main" java.lang.RuntimeException: 2 errors
at test/jdk.test.Main.main(Main.java:48)

result: Error. "junit" action timed out with a timeout of 1200 seconds on agent 90; but completed after timeout - suppressed status: "Passed. Execution successful"

There are a total of five timeout sightings of this test on windows-x64
in the Vallhalla CI. All of them are 27+ -> 28+ minutes except for one
that is 30+ minutes. All of the failures report that the test completed
and passed while the timeout handler was running.