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java.lang.IllegalArgumentException: InputStream cannot be null	at javax.xml.parsers.SAXParser.parse(SAXParser.java:191)	at com.liferay.faces.util.config.internal.FacesConfigDescriptorParserImpl.parse(FacesConfigDescriptorParserImpl.java:228)	at com.liferay.faces.util.config.internal.FacesConfigScannerImpl.scan(FacesConfigScannerImpl.java:148)	at com.liferay.faces.util.config.internal.ApplicationConfigInitializerImpl.initialize(ApplicationConfigInitializerImpl.java:76)	at com.liferay.faces.util.event.internal.ApplicationStartupListener.processSystemEvent(ApplicationStartupListener.java:61)	at com.liferay.faces.util.event.internal.ApplicationStartupListenerCompat.processEvent(ApplicationStartupListenerCompat.java:41)	at javax.faces.event.SystemEvent.processListener(SystemEvent.java:106)	at com.sun.faces.application.ApplicationImpl.processListeners(ApplicationImpl.java:2166)	at com.sun.faces.application.ApplicationImpl.invokeListenersFor(ApplicationImpl.java:2139)	at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:303)	at com.sun.faces.config.ConfigManager.publishPostConfigEvent(ConfigManager.java:601)	at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:370)	at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:216)	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4992)	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5492)	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:649)	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1083)	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1879)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)