The API for primaryViewName is not documented at all AND not used in the plugins, but the improper call of the default constructor will cause the issue. It happens in the user creation reflection in my tests.
This is a regression after JENKINS-38606 https://github.com/jenkinsci/jenkins/commit/fd2009a9712b8b0a8c310d687df07df60edbc8ad
java.lang.IllegalArgumentException: Argument for @Nonnull parameter 'primaryView' of hudson/model/AllView.migrateLegacyPrimaryAllViewLocalizedName must not be null
at hudson.model.AllView.$$$reportNull$$$0(AllView.java)
at hudson.model.AllView.migrateLegacyPrimaryAllViewLocalizedName(AllView.java)
at hudson.model.MyViewsProperty.readResolve(MyViewsProperty.java:91)
at hudson.model.MyViewsProperty.<init>(MyViewsProperty.java:79)
at hudson.model.MyViewsProperty.<init>(MyViewsProperty.java:63)
at hudson.model.MyViewsProperty$DescriptorImpl.newInstance(MyViewsProperty.java:211)
at hudson.model.User.load(User.java:209)
at hudson.model.User.<init>(User.java:161)
at hudson.model.User.getOrCreate(User.java:519)
at hudson.model.User.getById(User.java:624)
at hudson.security.HudsonPrivateSecurityRealm.createAccount(HudsonPrivateSecurityRealm.java:403)
at jenkins.install.SetupWizard.init(SetupWizard.java:112)
at jenkins.install.SetupWizardTest.initSetupWizard(SetupWizardTest.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at org.jvnet.hudson.test.JenkinsRule$1.evaluate(JenkinsRule.java:542)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.lang.Thread.run(Thread.java:745)
Bug
Minor