The failure messages look as follows :

java.lang.AssertionError: Expected [0]. Actual [1]: Check command [C:\\testuser\\output_openjdk25_dev_dbgU_ntamd64\\testee-vm\\bin\\jpackage.exe --input .\\test.a4184574\\input --dest .\\test.a4184574\\long-path\\aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\\ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc --name WinLongPathTest --type app-image --main-jar hello.jar --main-class Hello --win-console -J-Djlink.debug=true --verbose](16) exited with 0 code
at jdk.jpackage.test.TKit.error(TKit.java:277)
at jdk.jpackage.test.TKit.assertEquals(TKit.java:598)
at jdk.jpackage.test.Executor$Result.assertExitCodeIs(Executor.java:196)
at jdk.jpackage.test.Executor.execute(Executor.java:239)
at jdk.jpackage.test.JPackageCommand.execute(JPackageCommand.java:799)
at jdk.jpackage.test.JPackageCommand.execute(JPackageCommand.java:757)
at jdk.jpackage.test.JPackageCommand.executeAndAssertImageCreated(JPackageCommand.java:819)
at jdk.jpackage.test.JPackageCommand.executeAndAssertHelloAppImageCreated(JPackageCommand.java:813)
at WinLongPathTest.test(WinLongPathTest.java:70)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at jdk.jpackage.test.MethodCall.accept(MethodCall.java:111)
at jdk.jpackage.test.TestInstance.run(TestInstance.java:229)
at jdk.jpackage.test.TKit.lambda$ignoreExceptions$0(TKit.java:149)
at jdk.jpackage.test.TKit.lambda$runTests$1(TKit.java:134)
at java.base/java.util.AbstractList$RandomAccessSpliterator.forEachRemaining(AbstractList.java:722)
at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:807)
at jdk.jpackage.test.TKit.lambda$runTests$0(TKit.java:131)
at jdk.jpackage/jdk.jpackage.internal.util.function.ThrowingRunnable.lambda$toRunnable$0(ThrowingRunnable.java:35)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:118)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:109)
at jdk.jpackage.test.TKit.runTests(TKit.java:130)
at jdk.jpackage.test.Main.runTests(Main.java:109)
at jdk.jpackage.test.Main.lambda$main$3(Main.java:105)
at jdk.jpackage/jdk.jpackage.internal.util.function.ThrowingRunnable.lambda$toRunnable$0(ThrowingRunnable.java:35)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:118)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:109)
at jdk.jpackage.test.Main.main(Main.java:105)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1447)
java.lang.AssertionError: Expected [0]. Actual [1]: Check command [C:\\testuser\\output_openjdk25_dev_dbgU_ntamd64\\testee-vm\\bin\\jpackage.exe --input .\\test.a5cf5d26\\input --dest .\\test.a5cf5d26\\output --name WinLongPathTest --type app-image --main-jar hello.jar --main-class Hello --win-console --temp .\\test.a5cf5d26\\long-path\\aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\\bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\\ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc -J-Djlink.debug=true --verbose](18) exited with 0 code
at jdk.jpackage.test.TKit.error(TKit.java:277)
at jdk.jpackage.test.TKit.assertEquals(TKit.java:598)
at jdk.jpackage.test.Executor$Result.assertExitCodeIs(Executor.java:196)
at jdk.jpackage.test.Executor.execute(Executor.java:239)
at jdk.jpackage.test.JPackageCommand.execute(JPackageCommand.java:799)
at jdk.jpackage.test.JPackageCommand.execute(JPackageCommand.java:757)
at jdk.jpackage.test.JPackageCommand.executeAndAssertImageCreated(JPackageCommand.java:819)
at jdk.jpackage.test.JPackageCommand.executeAndAssertHelloAppImageCreated(JPackageCommand.java:813)
at WinLongPathTest.test(WinLongPathTest.java:70)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at jdk.jpackage.test.MethodCall.accept(MethodCall.java:111)
at jdk.jpackage.test.TestInstance.run(TestInstance.java:229)
at jdk.jpackage.test.TKit.lambda$ignoreExceptions$0(TKit.java:149)
at jdk.jpackage.test.TKit.lambda$runTests$1(TKit.java:134)
at java.base/java.util.AbstractList$RandomAccessSpliterator.forEachRemaining(AbstractList.java:722)
at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:807)
at jdk.jpackage.test.TKit.lambda$runTests$0(TKit.java:131)
at jdk.jpackage/jdk.jpackage.internal.util.function.ThrowingRunnable.lambda$toRunnable$0(ThrowingRunnable.java:35)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:118)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:109)
at jdk.jpackage.test.TKit.runTests(TKit.java:130)
at jdk.jpackage.test.Main.runTests(Main.java:109)
at jdk.jpackage.test.Main.lambda$main$3(Main.java:105)
at jdk.jpackage/jdk.jpackage.internal.util.function.ThrowingRunnable.lambda$toRunnable$0(ThrowingRunnable.java:35)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:118)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:109)
at jdk.jpackage.test.Main.main(Main.java:105)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1447)
java.lang.RuntimeException: 2 FAILED TESTS
at jdk.jpackage.test.Main.reportSummary(Main.java:160)
at jdk.jpackage.test.Main.runTests(Main.java:120)
at jdk.jpackage.test.Main.lambda$main$3(Main.java:105)
at jdk.jpackage/jdk.jpackage.internal.util.function.ThrowingRunnable.lambda$toRunnable$0(ThrowingRunnable.java:35)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:118)
at jdk.jpackage.test.TKit.withExtraLogStream(TKit.java:109)
at jdk.jpackage.test.Main.main(Main.java:105)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1447)