The following test task failed in an Adhoc job set:

tier4-client-headful-jtreg-open_test_jdk_jdk_desktop_part1-macosx-aarch64-112

Here's a snippet from the task's stdout log:

[2025-07-11T18:14:31,570Z] --------------------------------------------------
[2025-07-11T18:14:32,275Z] TEST: javax/swing/GraphicsConfigNotifier/OrderOfGConfigNotify.java
[2025-07-11T18:14:32,275Z] build: 0.401 seconds
[2025-07-11T18:14:32,275Z] compile: 0.4 seconds
[2025-07-11T18:14:32,275Z] main: 0.247 seconds
[2025-07-11T18:14:32,275Z] TEST RESULT: Passed. Execution successful
[2025-07-11T18:14:32,275Z] --------------------------------------------------
[2025-07-11T18:40:39,730Z] make/RunTests.gmk:1068: recipe for target 'run-test-jtreg_open_test_jdk_jdk_desktop_part1' failed
[2025-07-11T18:40:39,730Z] make[2]: *** [run-test-jtreg_open_test_jdk_jdk_desktop_part1] Hangup: 1
[2025-07-11T18:40:39,730Z] make/RunTestsPrebuilt.gmk:312: recipe for target 'test-prebuilt' failed
[2025-07-11T18:40:39,730Z] make[1]: *** [test-prebuilt] Hangup: 1
[2025-07-11T18:40:39,730Z] /System/Volumes/Data/mesos/work_dir/jib-master/install/2025-07-10-2216207.daniel.daugherty.8356564_for_jdk17u-cpu.git/src.full/open/make/Global.gmk:121: recipe for target 'test-prebuilt' failed
[2025-07-11T18:40:39,730Z] make: *** [test-prebuilt] Hangup: 1
[2025-07-11T22:08:15,147Z][ERROR][pool-2-thread-1][c.o.j.s.e.SparkyExecutorRunner] Timeout after PT4H while 'Running tests open/test/jdk/:jdk_desktop_part1' in phase EXECUTION

Here's the sequence of events based on the above log snippet:

- javax/swing/GraphicsConfigNotifier/OrderOfGConfigNotify.java
  finishes executing and has PASSED
- 26 minutes later "make" receives a "Hangup: 1"
- 3 hours, 28 minutes later the Sparky executor hits the four hour timeout
- since there is no "Retrying Jtreg run..." message in the task's stdout,
  this is the first attempt to run the test suite.
- the stdout log shows that 55 tests were run before the "Hangup: 1"
  and on the other platforms we ran between 608 to 641 tests so
  the "Hangup: 1" happened rather early in the test run.

I'm starting this issue in infrastructure/other because I think this is
related to either JTREG or Mach5.