tomcat 启动报错，这个问题怎么处理？

Question

2016-10-30 20:33:06,746 localhost-startStop-1 WARN Could not instantiate FastDateFormat with pattern YYYY-MM-dd HH:mm:ss java.lang.IllegalArgumentException: Illegal pattern component: YYYY
at org.apache.logging.log4j.core.util.datetime.FastDatePrinter.parsePattern(FastDatePrinter.java:267)
at org.apache.logging.log4j.core.util.datetime.FastDatePrinter.init(FastDatePrinter.java:124)
at org.apache.logging.log4j.core.util.datetime.FastDatePrinter.(FastDatePrinter.java:115)
at org.apache.logging.log4j.core.util.datetime.FastDateFormat.(FastDateFormat.java:100)
at org.apache.logging.log4j.core.util.datetime.FastDateFormat.(FastDateFormat.java:81)
at org.apache.logging.log4j.core.util.datetime.FastDateFormat$1.createInstance(FastDateFormat.java:61)
at org.apache.logging.log4j.core.util.datetime.FastDateFormat$1.createInstance(FastDateFormat.java:58)
at org.apache.logging.log4j.core.util.datetime.FormatCache.getInstance(FormatCache.java:82)
at org.apache.logging.log4j.core.util.datetime.FastDateFormat.getInstance(FastDateFormat.java:140)
at org.apache.logging.log4j.core.pattern.DatePatternConverter.createNonFixedFormatter(DatePatternConverter.java:221)
at org.apache.logging.log4j.core.pattern.DatePatternConverter.createFormatter(DatePatternConverter.java:179)
at org.apache.logging.log4j.core.pattern.DatePatternConverter.(DatePatternConverter.java:170)
at org.apache.logging.log4j.core.pattern.DatePatternConverter.newInstance(DatePatternConverter.java:189)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.logging.log4j.core.pattern.PatternParser.createConverter(PatternParser.java:549)
at org.apache.logging.log4j.core.pattern.PatternParser.finalizeConverter(PatternParser.java:602)
at org.apache.logging.log4j.core.pattern.PatternParser.parse(PatternParser.java:386)
at org.apache.logging.log4j.core.pattern.PatternParser.parse(PatternParser.java:171)
at org.apache.logging.log4j.core.layout.PatternLayout.createSerializer(PatternLayout.java:124)
at org.apache.logging.log4j.core.layout.PatternLayout.(PatternLayout.java:111)
at org.apache.logging.log4j.core.layout.PatternLayout.(PatternLayout.java:58)
at org.apache.logging.log4j.core.layout.PatternLayout$Builder.build(PatternLayout.java:494)
at org.apache.logging.log4j.core.layout.PatternLayout$Builder.build(PatternLayout.java:405)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:942)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:882)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:874)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:874)
at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:498)
at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:227)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:239)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:530)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:603)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:620)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:226)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:242)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:174)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:618)
at org.jboss.logging.Log4j2Logger.(Log4j2Logger.java:36)
at org.jboss.logging.Log4j2LoggerProvider.getLogger(Log4j2LoggerProvider.java:30)
at org.jboss.logging.Log4j2LoggerProvider.getLogger(Log4j2LoggerProvider.java:26)
at org.jboss.logging.LoggerProviders.logProvider(LoggerProviders.java:156)
at org.jboss.logging.LoggerProviders.tryLog4j2(LoggerProviders.java:129)
at org.jboss.logging.LoggerProviders.findProvider(LoggerProviders.java:91)
at org.jboss.logging.LoggerProviders.find(LoggerProviders.java:34)
at org.jboss.logging.LoggerProviders.(LoggerProviders.java:31)
at org.jboss.logging.Logger.getLogger(Logger.java:2465)
at org.jboss.logging.Logger$1.run(Logger.java:2565)
at java.security.AccessController.doPrivileged(Native Method)
at org.jboss.logging.Logger.getMessageLogger(Logger.java:2529)
at org.jboss.logging.Logger.getMessageLogger(Logger.java:2516)
at org.hibernate.internal.CoreLogging.messageLogger(CoreLogging.java:28)
at org.hibernate.internal.CoreLogging.messageLogger(CoreLogging.java:24)
at org.hibernate.cfg.Configuration.(Configuration.java:85)
at org.springframework.orm.hibernate5.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:389)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:207)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1128)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1056)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:566)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:349)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1219)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:751)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4717)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

Answer 1

YYYY改成小写yyyy试试，