We see the mentioned test jtreg tools/jpackage/share/ErrorTest.java#id0
failing sometimes.
Error output is
----------System.out:(3/140)----------
[23:42:05.412] Parsing [--jpt-run=ErrorTest]...
[23:42:05.720] Running dpkg
[23:42:06.108] Error processing parameter=[--jpt-run=ErrorTest]
----------System.err:(24/1310)----------
java.lang.ExceptionInInitializerError
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:467)
at java.base/java.lang.Class.forName(Class.java:458)
at jdk.jpackage.test.TestBuilder.probeClass(TestBuilder.java:238)
at jdk.jpackage.test.TestBuilder.getJavaMethodsFromArg(TestBuilder.java:257)
at jdk.jpackage.test.TestBuilder.lambda$new$2(TestBuilder.java:98)
at jdk.jpackage.test.TestBuilder.processCmdLineArg(TestBuilder.java:140)
at jdk.jpackage.test.Main.main(Main.java:87)
at jdk.jpackage.test.Main.main(Main.java:45)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1447)
Caused by: java.util.NoSuchElementException: No value present
at java.base/java.util.Optional.orElseThrow(Optional.java:377)
at ErrorTest.defaultNativeType(ErrorTest.java:644)
at ErrorTest.<clinit>(ErrorTest.java:670)
... 13 more

#id1

----------System.out:(3/140)----------
[14:12:39.697] Parsing [--jpt-run=ErrorTest]...
[14:12:40.029] Running dpkg
[14:12:40.420] Error processing parameter=[--jpt-run=ErrorTest]
----------System.err:(24/1310)----------
java.lang.ExceptionInInitializerError
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:467)
at java.base/java.lang.Class.forName(Class.java:458)
at jdk.jpackage.test.TestBuilder.probeClass(TestBuilder.java:238)
at jdk.jpackage.test.TestBuilder.getJavaMethodsFromArg(TestBuilder.java:257)
at jdk.jpackage.test.TestBuilder.lambda$new$2(TestBuilder.java:98)
at jdk.jpackage.test.TestBuilder.processCmdLineArg(TestBuilder.java:140)
at jdk.jpackage.test.Main.main(Main.java:87)
at jdk.jpackage.test.Main.main(Main.java:45)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1447)
Caused by: java.util.NoSuchElementException: No value present
at java.base/java.util.Optional.orElseThrow(Optional.java:377)
at ErrorTest.defaultNativeType(ErrorTest.java:644)
at ErrorTest.<clinit>(ErrorTest.java:670)
... 13 more



Failures are seen e.g. on RHEL Linux and SLES15.4 .
Since 18th March we see those failures .