I am getting the same error.  Has anyone figured out what the issue is 
please?  Thanks and happy holidays!

On Thursday, August 3, 2017 at 4:44:39 AM UTC-4, Udo Einspanier wrote:
>
> Hi,
>
> we have a CAS deployment based in the maven war overlay (tested with 5.0.3 
> + 5.0.7) in external Tomcat 8.5 /w Java 8. This works on three test 
> machines, but on a new one with CentOS 7 gives the below error and the 
> webapp is not started. I have already tried to remove all additional 
> dependencies like cas-server-support-rest, but with no effect. Has anyone 
> also experienced this as well, or can someone say what could be the cause 
> of the error? any suggestions appreciated.
>
> CAS Version: 5.0.3
> Apache Tomcat Version: Apache Tomcat/8.5.16
> Build Date/Time: 2017-02-18T04:13:16Z
> System Temp Directory: /opt/tomcat85/temp
> Java Home: /opt/jdk1.8.0_144/jre
> Java Vendor: Oracle Corporation
> Java Version: 1.8.0_144
> JCE Installed: no
> OS Architecture: amd64
> OS Name: Linux
> OS Version: 3.10.0-514.26.2.el7.x86_64
>
> ^[[0m
> 03-Aug-2017 10:20:34.214 SEVERE [localhost-startStop-1] 
> org.apache.catalina.core.ContainerBase.addChildInternal 
> ContainerBase.addChild: start:
>  org.apache.catalina.LifecycleException: Failed to start component 
> [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/cas]]
>         at 
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
>         at 
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
>         at 
> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
>         at 
> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
>         at 
> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:630)
>         at 
> org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1842)
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>         at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.IllegalStateException: Unable to load configuration 
> files
>         at 
> org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:215)
>         at 
> org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:181)
>         at 
> org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:168)
>         at 
> org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:154)
>         at 
> org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:166)
>         at 
> org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:138)
>         at 
> org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:121)
>         at 
> org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:68)
>         at 
> org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
>         at 
> org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:337)
>         at 
> org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
>         at 
> org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:134)
>         at 
> org.springframework.cloud.config.server.environment.NativeEnvironmentRepository.findOne(NativeEnvironmentRepository.java:110)
>         at 
> org.springframework.cloud.config.server.environment.EnvironmentRepositoryPropertySourceLocator.locate(EnvironmentRepositoryPropertySourceLocator.java:50)
>         at 
> org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:89)
>         at 
> org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:635)
>         at 
> org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:349)
>         at 
> org.springframework.boot.SpringApplication.run(SpringApplication.java:313)
>         at 
> org.springframework.boot.web.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:151)
>         at 
> org.springframework.boot.web.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:131)
>         at 
> org.springframework.boot.web.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:86)
>         at 
> org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:169)
>         at 
> org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5196)
>         at 
> org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
>         ... 10 more
> Caused by: java.util.InvalidPropertiesFormatException: 
> org.xml.sax.SAXParseException; lineNumber: 4; columnNumber: 59; Document 
> root element "Context", must match DOCTYPE root "null".
>         at 
> sun.util.xml.PlatformXmlPropertiesProvider.load(PlatformXmlPropertiesProvider.java:80)
>         at java.util.Properties$XmlSupport.load(Properties.java:1201)
>         at java.util.Properties.loadFromXML(Properties.java:881)
>         at 
> org.springframework.core.io.support.PropertiesLoaderUtils.fillProperties(PropertiesLoaderUtils.java:136)
>         at 
> org.springframework.core.io.support.PropertiesLoaderUtils.loadProperties(PropertiesLoaderUtils.java:121)
>         at 
> org.springframework.boot.env.PropertiesPropertySourceLoader.load(PropertiesPropertySourceLoader.java:44)
>         at 
> org.springframework.boot.env.PropertySourcesLoader.load(PropertySourcesLoader.java:127)
>         at 
> org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadIntoGroup(ConfigFileApplicationListener.java:466)
>         at 
> org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:453)
>         at 
> org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:377)
>         at 
> org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:212)
>         ... 33 more
> Caused by: org.xml.sax.SAXParseException; lineNumber: 4; columnNumber: 59; 
> Document root element "Context", must match DOCTYPE root "null".
>         at 
> com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203)
>         at 
> com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134)
>         at 
> com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:396)
>         at 
> com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327)
>         at 
> com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:284)
>         at 
> com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.rootElementSpecified(XMLDTDValidator.java:1599)
>         at 
> com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleStartElement(XMLDTDValidator.java:1877)
>         at 
> com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.emptyElement(XMLDTDValidator.java:763)
>         at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1339)
>         at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$ContentDriver.scanRootElementHook(XMLDocumentScannerImpl.java:1289)
>         at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3132)
>         at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:852)
>         at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602)
>         at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505)
>         at 
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:841)
>         at 
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:770)
>         at 
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
>         at 
> com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:243)
>         at 
> com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:339)
>         at 
> sun.util.xml.PlatformXmlPropertiesProvider.getLoadingDoc(PlatformXmlPropertiesProvider.java:106)
>         at 
> sun.util.xml.PlatformXmlPropertiesProvider.load(PlatformXmlPropertiesProvider.java:78)
>         ... 43 more
>
> 03-Aug-2017 10:20:34.215 SEVERE [localhost-startStop-1] 
> org.apache.catalina.startup.HostConfig.deployDescriptor Error deploying 
> configuration descriptor [/opt/tomcat85/conf/Catalina/localhost/cas.xml]
>  java.lang.IllegalStateException: ContainerBase.addChild: start: 
> org.apache.catalina.LifecycleException: Failed to start component 
> [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/cas]]
>         at 
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:756)
>         at 
> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
>         at 
> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
>         at 
> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:630)
>         at 
> org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1842)
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>         at java.lang.Thread.run(Thread.java:748)
>
> 03-Aug-2017 10:20:34.215 INFO [localhost-startStop-1] 
> org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of 
> configuration descriptor [/opt/tomcat85/conf/Catalina/localhost/cas.xml] 
> has finished in [6,111] ms
>
>
>
>

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