Atualizando projeto para maven e com as últimas versões das APIS.

Calculator-Web/WebContent/WEB-INF/faces-config.xml → Calculator-Web/src/main/webapp/WEB-INF/faces-config.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <faces-config version="2.2" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd">
- <managed-bean>
-  <managed-bean-name>calculatorManagedBean</managed-bean-name>
-  <managed-bean-class>br.ufrn.imd.imd0409.calculator.view.CalculatorManagedBean</managed-bean-class>
-  <managed-bean-scope>request</managed-bean-scope>
- </managed-bean>
- <navigation-rule>
+  <navigation-rule>
   <from-view-id>/formulario.xhtml</from-view-id>
   <navigation-case>
    <from-outcome>Soma</from-outcome>

Calculator-Web/WebContent/WEB-INF/web.xml → Calculator-Web/src/main/webapp/WEB-INF/web.xml

@@ -8,7 +8,7 @@
   </servlet>
   <servlet-mapping>
     <servlet-name>Faces Servlet</servlet-name>
-    <url-pattern>*.jsf</url-pattern>
+    <url-pattern>*.xhtml</url-pattern>
   </servlet-mapping>
   <servlet-mapping>
     <servlet-name>Faces Servlet</servlet-name>
@@ -18,4 +18,7 @@
     <servlet-name>Faces Servlet</servlet-name>
     <url-pattern>/faces/*</url-pattern>
   </servlet-mapping>
+  <welcome-file-list>
+  <welcome-file>index.html</welcome-file>
+ </welcome-file-list>
 </web-app>
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