java.lang.SecurityException: org.xml.sax.SAXNotRecognizedException: http://apache.org/xml/features/a

1. 部署一个war包到服务器，启动报500

Type Exception Report

Message AuthConfigFactory error: java.lang.reflect.InvocationTargetException

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

java.lang.SecurityException: AuthConfigFactory error: java.lang.reflect.InvocationTargetException
	javax.security.auth.message.config.AuthConfigFactory.getFactory(AuthConfigFactory.java:87)
	org.apache.catalina.authenticator.AuthenticatorBase.findJaspicProvider(AuthenticatorBase.java:1258)
	org.apache.catalina.authenticator.AuthenticatorBase.getJaspicProvider(AuthenticatorBase.java:1248)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:495)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:748)
Root Cause

java.lang.reflect.InvocationTargetException
	sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	javax.security.auth.message.config.AuthConfigFactory$1.run(AuthConfigFactory.java:78)
	javax.security.auth.message.config.AuthConfigFactory$1.run(AuthConfigFactory.java:68)
	java.security.AccessController.doPrivileged(Native Method)
	javax.security.auth.message.config.AuthConfigFactory.getFactory(AuthConfigFactory.java:67)
	org.apache.catalina.authenticator.AuthenticatorBase.findJaspicProvider(AuthenticatorBase.java:1258)
	org.apache.catalina.authenticator.AuthenticatorBase.getJaspicProvider(AuthenticatorBase.java:1248)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:495)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:748)
Root Cause

java.lang.SecurityException: org.xml.sax.SAXNotRecognizedException: http://apache.org/xml/features/allow-java-encodings
	org.apache.catalina.authenticator.jaspic.PersistentProviderRegistrations.loadProviders(PersistentProviderRegistrations.java:66)
	org.apache.catalina.authenticator.jaspic.AuthConfigFactoryImpl.loadPersistentRegistrations(AuthConfigFactoryImpl.java:347)
	org.apache.catalina.authenticator.jaspic.AuthConfigFactoryImpl.<init>(AuthConfigFactoryImpl.java:69)
	sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	javax.security.auth.message.config.AuthConfigFactory$1.run(AuthConfigFactory.java:78)
	javax.security.auth.message.config.AuthConfigFactory$1.run(AuthConfigFactory.java:68)
	java.security.AccessController.doPrivileged(Native Method)
	javax.security.auth.message.config.AuthConfigFactory.getFactory(AuthConfigFactory.java:67)
	org.apache.catalina.authenticator.AuthenticatorBase.findJaspicProvider(AuthenticatorBase.java:1258)
	org.apache.catalina.authenticator.AuthenticatorBase.getJaspicProvider(AuthenticatorBase.java:1248)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:495)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:748)
Root Cause

org.xml.sax.SAXNotRecognizedException: http://apache.org/xml/features/allow-java-encodings
	gnu.xml.aelfred2.JAXPFactory.setFeature(JAXPFactory.java:102)
	org.apache.tomcat.util.digester.Digester.setFeature(Digester.java:518)
	org.apache.catalina.authenticator.jaspic.PersistentProviderRegistrations.loadProviders(PersistentProviderRegistrations.java:62)
	org.apache.catalina.authenticator.jaspic.AuthConfigFactoryImpl.loadPersistentRegistrations(AuthConfigFactoryImpl.java:347)
	org.apache.catalina.authenticator.jaspic.AuthConfigFactoryImpl.<init>(AuthConfigFactoryImpl.java:69)
	sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	javax.security.auth.message.config.AuthConfigFactory$1.run(AuthConfigFactory.java:78)
	javax.security.auth.message.config.AuthConfigFactory$1.run(AuthConfigFactory.java:68)
	java.security.AccessController.doPrivileged(Native Method)
	javax.security.auth.message.config.AuthConfigFactory.getFactory(AuthConfigFactory.java:67)
	org.apache.catalina.authenticator.AuthenticatorBase.findJaspicProvider(AuthenticatorBase.java:1258)
	org.apache.catalina.authenticator.AuthenticatorBase.getJaspicProvider(AuthenticatorBase.java:1248)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:495)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:748)
Note The full stack trace of the root cause is available in the server logs.

2.解决办法，在项目的web.xml头部加metadata-complete="true"
web.xml文件中使用元素通知Web容器是否要寻找注解，如果你将设为false，或者在文件中不指定元素，那么在部署期间，容器必须扫描注解和Web分片，为Web应用程序构建有效的元数据。如果将设为true，将由部署描述符为Web应用程序提供所有的配置信息。
即：
重新打包部署启动即可