Boa tarde Alberto.
Estou utilizando java 8
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)
Log para ajudar (não entendi o log, qui esta os principais informativos do log).
Source Document: file:/C:/Desenvolvimento/Server/wildfly-10.1.0.Final/standalone/deployments/Livraria.war/WEB-INF/faces-config.xml
Cause: Unable to create a new instance of 'br.com.caelum.livraria.login.Autorizador': javax.faces.FacesException: br.com.caelum.livraria.login.Autorizador from [Module "deployment.Livraria.war:main" from Service Module Loader]
Caused by: javax.faces.FacesException: br.com.caelum.livraria.login.Autorizador from [Module "deployment.Livraria.war:main" from Service Module Loader]
Caused by: java.lang.ClassNotFoundException: br.com.caelum.livraria.login.Autorizador from [Module "deployment.Livraria.war:main" from Service Module Loader]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:198)
16:47:44,602 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 65) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./Livraria: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./Livraria: java.lang.RuntimeException: java.lang.RuntimeException: com.sun.faces.config.ConfigurationException:
Source Document: file:/C:/Desenvolvimento/Server/wildfly-10.1.0.Final/standalone/deployments/Livraria.war/WEB-INF/faces-config.xml
Cause: Unable to create a new instance of 'br.com.caelum.livraria.login.Autorizador': javax.faces.FacesException: br.com.caelum.livraria.login.Autorizador from [Module "deployment.Livraria.war:main" from Service Module Loader]
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:85)