2673317 - datahub installation problem during tomcat upgrading to 8.x

When starting the datahub server, got the following error and failed to start.

07-Jun-2018 14:33:32.905 SEVERE [localhost-startStop-1] org.apache.catalina.startup.ContextConfig.processContextConfig Parse error in context.xml for [/datahub-webapp]
org.xml.sax.SAXParseException; systemId: file:/home/datahub/datahubserver/conf/Catalina/localhost/datahub-webapp.xml; lineNumber: 29; columnNumber: 3; Error at (29, 3) : org.apache.catalina.loader.VirtualWebappLoader
at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.java:1971)
at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.java:2003)
at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1256)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509)
at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1339)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2784)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:842)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:771)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)
at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1521)
at org.apache.catalina.startup.ContextConfig.processContextConfig(ContextConfig.java:527)
at org.apache.catalina.startup.ContextConfig.contextConfig(ContextConfig.java:484)
at org.apache.catalina.startup.ContextConfig.init(ContextConfig.java:728)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:310)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:395)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:108)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:629)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1839)
at java.util.concurrent.Executors$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.ClassNotFoundException: org.apache.catalina.loader.VirtualWebappLoader
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:116)
at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1253)
... 30 more

• Tomcat 8.x
• Datahub 6.7
• SAP Hybris Commerce Suite 6.7

VirtualWebappLoader, datahub, tomcat 8.x. , KBA , CEC-COM-HUB , SAP Commerce Data Hub , Problem