If WinL10nTest.java test is executed in the system where path to WiX toolkit binaries is not in %PATH% environment variable the test fails:

[12:35:15.166] ERROR: Unexpected null value: Check output contains [-cultures:en-us] string
[12:35:15.168] [ FAILED ] WinL10nTest([name=a.wxl; culture=en-us](length=1), en-us, null).test; checks=7
java.lang.AssertionError: Unexpected null value: Check output contains [-cultures:en-us] string
at jdk.jpackage.test.TKit.error(TKit.java:264)
at jdk.jpackage.test.TKit.assertNotNull(TKit.java:624)
at jdk.jpackage.test.TKit$TextStreamVerifier.apply(TKit.java:810)
at WinL10nTest.lambda$test$3(WinL10nTest.java:122)
at jdk.jpackage.test.Functional$ThrowingBiConsumer.lambda$toBiConsumer$0(Functional.java:56)
at jdk.jpackage.test.PackageTest$Handler.lambda$verifyPackageBundle$2(PackageTest.java:573)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at jdk.jpackage.test.PackageTest$Handler.verifyPackageBundle(PackageTest.java:573)
at jdk.jpackage.test.PackageTest$Handler.accept(PackageTest.java:539)
at jdk.jpackage.test.PackageTest$2.accept(PackageTest.java:461)
at jdk.jpackage.test.PackageTest$2.accept(PackageTest.java:398)
at jdk.jpackage.test.Functional$ThrowingConsumer.lambda$toConsumer$0(Functional.java:41)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at jdk.jpackage.test.PackageTest.lambda$runActions$21(PackageTest.java:362)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at jdk.jpackage.test.PackageTest.lambda$runActions$22(PackageTest.java:361)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at jdk.jpackage.test.PackageTest.runActions(PackageTest.java:360)
at jdk.jpackage.test.RunnablePackageTest.run(RunnablePackageTest.java:57)
at WinL10nTest.test(WinL10nTest.java:165)