The following 4 jpackage tests failed in the JDK21 CI:

tools/jpackage/share/AppContentTest.java
tools/jpackage/share/AddLShortcutTest.java
tools/jpackage/share/AddLauncherTest.java#id1
tools/jpackage/share/jdk/jpackage/tests/VendorTest.java#id1

All four of the tests had failures that look like this:

[04:30:11.370] TRACE: exec: Execute [cmd /c .\\test.fc486437\\unpacked-msi\\unpack.bat](3); discard I/O...
[04:30:14.446] TRACE: exec: Done. Exit code: 1618
[04:30:17.464] TRACE: exec: Execute [cmd /c .\\test.fc486437\\unpacked-msi\\unpack.bat](3); discard I/O...
[04:30:20.790] TRACE: exec: Done. Exit code: 1618
[04:30:24.798] TRACE: exec: Execute [cmd /c .\\test.fc486437\\unpacked-msi\\unpack.bat](3); discard I/O...
[04:30:27.835] TRACE: exec: Done. Exit code: 1618
[04:30:32.850] TRACE: exec: Execute [cmd /c .\\test.fc486437\\unpacked-msi\\unpack.bat](3); discard I/O...
[04:30:35.886] TRACE: exec: Done. Exit code: 1618
[04:30:41.902] TRACE: exec: Execute [cmd /c .\\test.fc486437\\unpacked-msi\\unpack.bat](3); discard I/O...
[04:30:45.228] TRACE: exec: Done. Exit code: 1618
[04:30:52.243] TRACE: exec: Execute [cmd /c .\\test.fc486437\\unpacked-msi\\unpack.bat](3); discard I/O...
[04:30:55.292] TRACE: exec: Done. Exit code: 1618
[04:31:03.307] TRACE: exec: Execute [cmd /c .\\test.fc486437\\unpacked-msi\\unpack.bat](3); discard I/O...
[04:31:06.340] TRACE: exec: Done. Exit code: 1618
[04:31:15.355] TRACE: exec: Execute [cmd /c .\\test.fc486437\\unpacked-msi\\unpack.bat](3); discard I/O...
[04:31:18.446] TRACE: exec: Done. Exit code: 1618
[04:31:28.480] ERROR: Expected [0]. Actual [1618]: Check command [cmd /c .\\test.fc486437\\unpacked-msi\\unpack.bat](3) exited with 0 code
[04:31:28.485] [ FAILED ] AppContentTest(C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-21+26-2270\\src.full\\open\\test\\jdk\\tools\\jpackage\\apps\\PrintEnv.java, C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-21+26-2270\\src.full\\open\\test\\jdk\\tools\\jpackage\\apps\\dukeplug.png).test; checks=6

I checked the test task's stdout log but I didn't see anything out of
the ordinary like disk space issues or the like. The test machine
has continued to execute other test suites without issue; yes, some
of those test suites have failures, but no failure like these odd ones.