我刚刚下载了 Spring Boot GIT 项目，mvn eclipse:eclipse在 spring-boot-sample-secure 文件夹中运行了一个，然后只将该项目导入了 STS。但是，当我运行它时，我得到以下信息：
2013-11-06 20:44:49.266 DEBUG 12555 --- [ost-startStop-1] s.s.c.a.a.b.AuthenticationManagerBuilder : Failed to perform build. Returning null
java.lang.IllegalArgumentException: A parent AuthenticationManager or a list of AuthenticationProviders is required
at org.springframework.security.authentication.ProviderManager.checkState(ProviderManager.java:117)
at org.springframework.security.authentication.ProviderManager.<init>(ProviderManager.java:106)
at org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder.performBuild(AuthenticationManagerBuilder.java:221)
at org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder.performBuild(AuthenticationManagerBuilder.java:47)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.doBuild(AbstractConfiguredSecurityBuilder.java:331)
at org.springframework.security.config.annotation.AbstractSecurityBuilder.build(AbstractSecurityBuilder.java:39)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.getOrBuild(AbstractConfiguredSecurityBuilder.java:105)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.authenticationManager(WebSecurityConfigurerAdapter.java:223)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.getHttp(WebSecurityConfigurerAdapter.java:164)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.init(WebSecurityConfigurerAdapter.java:280)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.init(WebSecurityConfigurerAdapter.java:56)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.init(AbstractConfiguredSecurityBuilder.java:369)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.doBuild(AbstractConfiguredSecurityBuilder.java:322)
at org.springframework.security.config.annotation.AbstractSecurityBuilder.build(AbstractSecurityBuilder.java:39)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.springSecurityFilterChain(WebSecurityConfiguration.java:90)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerByCGLIB$$fb023809.CGLIB$springSecurityFilterChain$2(<generated>)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerByCGLIB$$fb023809$$FastClassByCGLIB$$8b55b724.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:334)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerByCGLIB$$fb023809.springSecurityFilterChain(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:166)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:573)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1089)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:984)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:296)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:467)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getOrderedBeansOfType(EmbeddedWebApplicationContext.java:360)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getServletContextInitializerBeans(EmbeddedWebApplicationContext.java:267)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext$1.onStartup(EmbeddedWebApplicationContext.java:212)
at org.springframework.boot.context.embedded.tomcat.ServletContextInitializerLifecycleListener.lifecycleEvent(ServletContextInitializerLifecycleListener.java:54)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5322)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
2013-11-06 20:44:49.408 INFO 12555 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/health'], []
2013-11-06 20:44:49.408 INFO 12555 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/info'], []
2013-11-06 20:44:49.408 INFO 12555 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/css/**'], []
2013-11-06 20:44:49.408 INFO 12555 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/js/**'], []
2013-11-06 20:44:49.408 INFO 12555 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/images/**'], []
2013-11-06 20:44:49.408 INFO 12555 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/**/favicon.ico'], []
2013-11-06 20:44:49.408 INFO 12555 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: Ant [pattern='/error'], []
除了运行 maven 来构建 Eclipse 项目（以及导入它时 STS 可能所做的任何事情）之外，我根本没有对文件进行任何更改。该网站似乎工作正常。我可以使用用户名/密码登录，我可以注销。没有错误。但是那个堆栈跟踪看起来很糟糕。这只是一个红色的信息，由可能没有 100% 准备好大规模消费的非生产代码引起，还是这表明我应该追查一些问题？