I attempted to configure the active-directory plugin in various ways and saw many failures when clicking the Test button. Eventually I succeeded in a Test by specifying the correct domain name and leaving all the Advanced fields blank. But upon clicking Save, the Oops page came up displaying the following error:

org.jvnet.hudson.reactor.ReactorException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authenticationManager': Cannot create inner bean '(inner bean)' of type [org.acegisecurity.providers.rememberme.RememberMeAuthenticationProvider] while setting bean property 'providers' with key [1]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: [Assertion failed] - this String argument must have length; it must not be null or empty
at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:246)
at jenkins.InitReactorRunner.run(InitReactorRunner.java:43)
at jenkins.model.Jenkins.executeReactor(Jenkins.java:910)
at jenkins.model.Jenkins.<init>(Jenkins.java:806)
at hudson.model.Hudson.<init>(Hudson.java:81)
at hudson.model.Hudson.<init>(Hudson.java:77)
at hudson.WebAppMain$3.run(WebAppMain.java:221)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authenticationManager': Cannot create inner bean '(inner bean)' of type [org.acegisecurity.providers.rememberme.RememberMeAuthenticationProvider] while setting bean property 'providers' with key [1]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: [Assertion failed] - this String argument must have length; it must not be null or empty
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:230)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:122)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:287)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:126)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at hudson.util.spring.DefaultRuntimeSpringConfiguration.getApplicationContext(DefaultRuntimeSpringConfiguration.java:94)
at hudson.util.spring.BeanBuilder.createApplicationContext(BeanBuilder.java:388)
at hudson.plugins.active_directory.ActiveDirectorySecurityRealm.createSecurityComponents(ActiveDirectorySecurityRealm.java:131)
at hudson.security.SecurityRealm.getSecurityComponents(SecurityRealm.java:398)
at hudson.security.HudsonFilter.reset(HudsonFilter.java:134)
at jenkins.model.Jenkins.setSecurityRealm(Jenkins.java:2050)
at jenkins.model.Jenkins$20.run(Jenkins.java:2618)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:899)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:701)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: [Assertion failed] - this String argument must have length; it must not be null or empty
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:219)
... 32 more
Caused by: java.lang.IllegalArgumentException: [Assertion failed] - this String argument must have length; it must not be null or empty
at org.springframework.util.Assert.hasLength(Assert.java:136)
at org.springframework.util.Assert.hasLength(Assert.java:148)
at org.acegisecurity.providers.rememberme.RememberMeAuthenticationProvider.afterPropertiesSet(RememberMeAuthenticationProvider.java:56)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
... 37 more

And now, after restarting Jenkins, it fails to start and displays this same error with no way to get back to my previous configuration (no security configured).

Also, there was no option to choose a version other than 'current'. I'm actually running 1.532.1, but didn't see anything related in the change logs, so I haven't tried upgrading to the latest.