NullPointerException during initFaces of a MyFaces 2.0 application while migrating from WLS to Tomcat - jsf-2

Question

I'm new to JSF and have been entrusted with the task of migrating what appears to me as an old MyFaces 2.0 webapp from WebLogic Server 12.1.3 to Tomcat (I chose Tomcat 9 and OpenWebBeans 2.0.20).
I followed the instructions at BalusC's page to integrate OpenWebBeans with Tomcat/webapp since just cdi-api-1.0.jar didn't do the trick.
I am seeing the following exception (please see the full stack trace further down).
20-Jun-2022 19:46:25.718 INFO [main] org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces ServletContext 'C:\apache-tomcat-9.0.63\webapps\app1\' initialized.
20-Jun-2022 19:46:25.767 INFO [main] org.primefaces.webapp.PostConstructApplicationEventListener.processEvent Running on PrimeFaces 4.0
20-Jun-2022 19:46:25.802 INFO [main] org.apache.myfaces.config.annotation.DefaultLifecycleProviderFactory.getLifecycleProvider Using LifecycleProvider org.apache.myfaces.config.annotation.AllAnnotationLifecycleProvider
20-Jun-2022 19:46:25.808 SEVERE [main] org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces An error occured while initializing MyFaces: null
java.lang.NullPointerException
at org.apache.myfaces.application.DefaultResourceHandlerSupport.calculateFacesServletMapping(DefaultResourceHandlerSupport.java:211)
Update #1:
After #tandraschko's suggestion to upgrade MyFaces from 2.0.0 to 2.0.25 & OpenWebBeans from 2.0.20 to 2.0.27, the above exception has evolved as follows:
28-Jun-2022 11:02:58.128 SEVERE [main] org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces An error occured while initializing MyFaces: null
java.lang.NullPointerException
at org.apache.webbeans.container.BeanManagerImpl.wrapExpressionFactory(BeanManagerImpl.java:1288)
Update #2:
After #tandraschko's suggestion to upgrade MyFaces from 2.0.0 to 2.3.10 and add StartupServletContextListener in web.xml, the latest exception is similar to the one above:
28-Jun-2022 12:20:17.674 SEVERE [main] org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces An error occured while initializing MyFaces: null
java.lang.NullPointerException
at org.apache.webbeans.container.BeanManagerImpl.wrapExpressionFactory(BeanManagerImpl.java:1288)
Update #3:
After #tandraschko's suggestion to match my pom.xml with that of the sample project, primefaces-test, there's no exception anymore!
However, launching the app on the browser resulted in the following exceptions being thrown (not related to the original question though):
30-Jun-2022 18:52:23.743 INFO [http-nio-8080-exec-6] org.apache.myfaces.extensions.cdi.jpa.impl.JpaModuleStartupObserver.logJpaModuleConfiguration [Started] MyFaces CODI JPA-Module v1.0.5
30-Jun-2022 18:52:23.781 INFO [http-nio-8080-exec-6] org.apache.myfaces.extensions.cdi.jsf2.impl.Jsf2ModuleStartupObserver.logJsfModuleConfiguration [Started] MyFaces CODI JSF-Module v1.0.5 for JSF 2.0
Used JSF implementation: MyFaces Core v2.3.10
config implementation: org.apache.myfaces.extensions.cdi.jsf.api.config.JsfModuleConfig$$OwbNormalScopeProxy0
config implementation: org.apache.myfaces.extensions.cdi.jsf.api.config.JsfModuleConfig
method: isInitialRedirectEnabled
value: true
method: isAlwaysKeepMessages
value: true
method: isUseViewConfigsAsNavigationCasesEnabled
value: true
method: isInvalidValueAwareMessageInterpolatorEnabled
value: true
config implementation: org.apache.myfaces.extensions.cdi.core.api.scope.conversation.config.WindowContextConfig$$OwbNormalScopeProxy0
config implementation: org.apache.myfaces.extensions.cdi.core.api.scope.conversation.config.WindowContextConfig
method: getWindowContextTimeoutInMinutes
value: 60
method: isUnknownWindowIdsAllowed
value: false
method: isCloseWindowContextEventEnabled
value: false
method: getMaxWindowContextCount
value: 64
method: isUrlParameterSupported
value: true
method: isAddWindowIdToActionUrlsEnabled
value: false
method: isCreateWindowContextEventEnabled
value: false
method: isEagerWindowContextDetectionEnabled
value: true
method: isCloseEmptyWindowContextsEnabled
value: false
config implementation: org.apache.myfaces.extensions.cdi.core.api.scope.conversation.config.ConversationConfig$$OwbNormalScopeProxy0
config implementation: org.apache.myfaces.extensions.cdi.core.api.scope.conversation.config.ConversationConfig
method: isStartConversationEventEnabled
value: false
method: isConversationRequiredEnabled
value: true
method: isCloseConversationEventEnabled
value: false
method: getConversationTimeoutInMinutes
value: 30
method: isAccessBeanEventEnabled
value: false
method: isUnscopeBeanEventEnabled
value: false
method: isScopeBeanEventEnabled
value: false
method: isRestartConversationEventEnabled
value: false
MessageContextConfig class: org.apache.myfaces.extensions.cdi.message.impl.DefaultMessageContextConfig
MessageInterpolator class: class org.apache.myfaces.extensions.cdi.jsf.impl.message.FacesMessageInterpolator
MessageResolver class: class org.apache.myfaces.extensions.cdi.jsf.impl.message.JsfAwareApplicationMessagesMessageResolver
MessageHandler class: class org.apache.myfaces.extensions.cdi.jsf.impl.message.JsfAwareMessageHandler
LocaleResolver class: class org.apache.myfaces.extensions.cdi.jsf.impl.message.JsfAwareLocaleResolver
FormatterFactory class: class org.apache.myfaces.extensions.cdi.message.impl.DefaultFormatterFactory
18:52:25.189 [http-nio-8080-exec-6] ERROR com.company.app1.enterprise.exception.app1ExceptionHandler - ExpHandler: current exception:class javax.faces.FacesException
18:52:25.190 [http-nio-8080-exec-6] ERROR com.company.app1.enterprise.exception.app1ExceptionHandler - ExpHandler: current exception component:null
18:52:25.192 [http-nio-8080-exec-6] ERROR com.company.app1.enterprise.exception.app1ExceptionHandler - ExpHandler: current exception phaseid:RENDER_RESPONSE(6)
18:52:25.200 [http-nio-8080-exec-6] ERROR com.company.app1.enterprise.exception.app1ExceptionHandler - ExpHandler: current exception: attributes{}
After scouring through post after post in SO, I wasn't able to find a similar issue nor any clue to crack my issue.
After decompiling myfaces-impl-2.0.0.jar, it seems that externalContext.getRequestServletPath() is returning null.
The webapp has extension mapping in web.xml (kindly see snippet further down) but I'm not sure if I'm looking at the right suspect.
Exception (Full Stack Trace after Update #2)
28-Jun-2022 12:20:17.674 SEVERE [main] org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces An error occured while initializing MyFaces: null
java.lang.NullPointerException
at org.apache.webbeans.container.BeanManagerImpl.wrapExpressionFactory(BeanManagerImpl.java:1288)
at org.apache.webbeans.jsf.OwbApplication.getExpressionFactory(OwbApplication.java:48)
at org.apache.myfaces.config.ManagedBeanBuilder.coerceToType(ManagedBeanBuilder.java:364)
at org.apache.myfaces.config.ManagedBeanBuilder.initializeProperties(ManagedBeanBuilder.java:347)
at org.apache.myfaces.config.ManagedBeanBuilder.buildManagedBean(ManagedBeanBuilder.java:163)
at org.apache.myfaces.webapp.AbstractFacesInitializer._createEagerBeans(AbstractFacesInitializer.java:339)
at org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:218)
at org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:103)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4768)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5230)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:698)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:696)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1024)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1911)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:825)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:475)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1618)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:319)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:946)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:263)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:432)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:927)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:772)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:345)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:476)
Configuration (as deduced & set up accordingly)
MyFaces 2.0
CODI 1.0.5
PrimeFaces 4.0
OpenWebBeans 2.0.20 (CDI 2.0 but beans_1_0 in beans.xml)
Tomcat 9
Java 8
Update 3: No jars were added to Tomcat's lib.
Update 3: The webapp's lib has the following 13 manually-added jars (with my notes against them):
Interestingly, everything works only if the 13 jars are placed in the webapp's lib (WEB-INF\lib) and not in Tomcat's lib!
Are there any recommendations or best practices on how to manage these 13 dependent jars?
commons-digester-1.8.jar
javax.ejb-api-3.2.2.jar
javax.persistence-api-2.2.jar
javax.ws.rs-api-2.0.1.jar
jersey-client-1.18.jar
jersey-core-1.18.jar (provided scope)
jersey-multipart-1.18.jar (provided scope)
jersey-server-1.18.jar (provided scope)
jersey-servlet-1.18.jar (provided scope)
myfaces-api-2.3.10.jar (one of the profile dependencies; should it be added to the POM as mentioned [here][2])
myfaces-impl-2.3.10.jar (one of the profile dependencies; should it be added to the POM as mentioned [here][2])
weblogic.jaxrs.internal.common_1.2.0.0.jar (need to be replaced with another JAX-RS provider?)
weblogic.jaxrs.server_3.0.0.0.jar (need to be replaced with another JAX-RS provider?)
pom.xml (abridged; modified now after years for Update #3)
<?xml version="1.0" encoding="UTF-8" ?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>TMapp1</groupId>
<artifactId>app1</artifactId>
<version>5.0</version>
<packaging>war</packaging>
<name>TM app1 Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<owb.version>2.0.27</owb.version>
</properties>
<dependencies>
<!-- app1 uses PrimeFaces 4.0 instead of 11.0.0 as primefaces-test 11.0.0 does. -->
<!-- <dependency> -->
<!-- <groupId>org.primefaces</groupId> -->
<!-- <artifactId>primefaces</artifactId> -->
<!-- <version>11.0.0</version> -->
<!-- </dependency> -->
<!-- javax.* APIs -->
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-atinject_1.0_spec</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-jcdi_2.0_spec</artifactId>
<version>1.3</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-interceptor_1.2_spec</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-annotation_1.3_spec</artifactId>
<version>1.3</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-validation_2.0_spec</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.6</version>
</dependency>
<!-- app1 uses 3.1.0 instead of 4.0.1 as primefaces-test 11.0.0 does. -->
<!-- <dependency> -->
<!-- <groupId>javax.servlet</groupId> -->
<!-- <artifactId>javax.servlet-api</artifactId> -->
<!-- <version>4.0.1</version> -->
<!-- <scope>provided</scope> -->
<!-- </dependency> -->
<!-- app1 uses 2.2.4 instead of 3.0.0 as primefaces-test 11.0.0 does. -->
<!-- <dependency> -->
<!-- <groupId>javax.el</groupId> -->
<!-- <artifactId>javax.el-api</artifactId> -->
<!-- <version>3.0.0</version> -->
<!-- <scope>provided</scope> -->
<!-- </dependency> -->
<!-- OpenWebBeans -->
<dependency>
<groupId>org.apache.openwebbeans</groupId>
<artifactId>openwebbeans-impl</artifactId>
<version>${owb.version}</version>
</dependency>
<dependency>
<groupId>org.apache.openwebbeans</groupId>
<artifactId>openwebbeans-jsf</artifactId>
<version>${owb.version}</version>
</dependency>
<dependency>
<groupId>org.apache.openwebbeans</groupId>
<artifactId>openwebbeans-web</artifactId>
<version>${owb.version}</version>
</dependency>
<dependency>
<groupId>org.apache.openwebbeans</groupId>
<artifactId>openwebbeans-el22</artifactId>
<version>${owb.version}</version>
</dependency>
<dependency>
<groupId>org.apache.bval</groupId>
<artifactId>bval-jsr</artifactId>
<version>2.0.6</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
</dependency>
<!-- start of apache-commons -->
<!-- Used by: app1 -->
<dependency>
<groupId<!-- ... -->
</dependency>
<!-- end of apache-commons -->
<dependency>
<!-- Used by: TODO: app1 -->
<groupId>org.apache.myfaces.extensions.cdi.bundles</groupId>
<artifactId>myfaces-extcdi-bundle-jsf20</artifactId>
<version>1.0.5</version>
</dependency>
<!-- primefaces? -->
<!-- Used by: app1 -->
<dependency> <!-- not used at compile time -->
<groupId>org.atmosphere</groupId>
<!-- ... -->
<dependency>
<groupId>org.primefaces</groupId>
<artifactId>primefaces</artifactId>
<version>4.0</version>
</dependency>
<!-- Used by: app1 -->
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>2.2.4</version>
</dependency>
<!-- start of jersey libs -->
<dependency>
<!-- ... -->
</dependency>
<!-- end of jersey libs -->
<dependency>
<!-- Used by: app1 -->
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<repositories>
<repository>
<id>primefaces</id>
<name>PrimeFaces Maven Repository</name>
<url>https://repository.primefaces.org</url>
<layout>default</layout>
</repository>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories>
<build>
<finalName>app1</finalName>
<plugins>
<!-- ... -->
</plugins>
<resources>
<!-- ... -->
</resources>
</build>
<profiles>
<profile>
<id>myfaces22</id>
<!-- ... -->
</profile>
<profile>
<id>myfaces23</id>
<!-- ... -->
</profile>
<profile>
<id>myfaces23next</id>
<!-- ... -->
</profile>
<profile>
<id>coverage</id>
<!-- ... -->
</profile>
</profiles>
</project>
web.xml
I removed what seems to be an old Mojarra remnant (following an error reported during startup):
<listener>
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>
from the web.xml below leaving me with only the 2 newly added listeners, WebBeansConfigurationListener (for OWB) and StartupServletContextListener (since Update #2: explicitly demanded it), in that order. Finally, cleaned it up to match the sample project, primefaces-test (Update #3).
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" >
<display-name>app1</display-name>
<context-param>
<param-name>javax.faces.FACELETS_SKIP_COMMENTS</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Production</param-value>
</context-param>
<context-param>
<param-name>javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
<param-value>resources.application</param-value>
</context-param>
<context-param>
<param-name>primefaces.THEME</param-name>
<param-value>casablanca</param-value>
</context-param>
<!-- Enable PostConstruct on JSF ManagedBeans on Jetty (and Tomcat as well?) -->
<context-param>
<param-name>org.apache.myfaces.config.annotation.LifecycleProvider</param-name>
<param-value>org.apache.myfaces.config.annotation.NoInjectionAnnotationLifecycleProvider</param-value>
</context-param>
<listener>
<listener-class>org.apache.webbeans.servlet.WebBeansConfigurationListener</listener-class>
</listener>
<listener>
<listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
</listener>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>jersey-serlvet</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>com.company.app1.enterprise.service.health</param-value>
</init-param>
<init-param>
<param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jersey-serlvet</servlet-name>
<url-pattern>/health/*</url-pattern>
</servlet-mapping>
<session-config> <!-- set the default session time out to 60 minutes -->
<session-timeout>60</session-timeout>
<!-- set the Session Cookie as httpOnly -->
<!-- <cookie-config>
<http-only>true</http-only>
</cookie-config> -->
<!-- Added this for SPR HCSDM00273622 - Links to sign up new users not working properly -->
<tracking-mode>COOKIE</tracking-mode>
</session-config>
<filter>
<filter-name>ParameterEscapeFilter</filter-name>
<filter-class>com.company.app1.enterprise.filter.ParameterEscapeFilter</filter-class>
<async-supported>true</async-supported>
</filter>
<filter-mapping>
<filter-name>ParameterEscapeFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>primeFacesFileUploadFilter</filter-name>
<filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
<async-supported>true</async-supported>
</filter>
<filter-mapping>
<filter-name>primeFacesFileUploadFilter</filter-name>
<servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
<filter>
<filter-name>GzipFilter</filter-name>
<filter-class>com.axeda.qpublic.filter.GZipServletFilter</filter-class>
<async-supported>true</async-supported>
</filter>
<filter-mapping>
<filter-name>GzipFilter</filter-name>
<url-pattern>*.js</url-pattern>
</filter-mapping>
<filter-mapping>
<!-- ... -->
</filter-mapping>
<resource-env-ref>
<resource-env-ref-name>BeanManager</resource-env-ref-name>
<resource-env-ref-type>javax.enterprise.inject.spi.BeanManager</resource-env-ref-type>
</resource-env-ref>
<mime-mapping>
<extension>xhtml</extension>
<mime-type>text/xhtml</mime-type>
</mime-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
beans.xml (untouched for years)
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">
<interceptors>
<class>org.apache.myfaces.extensions.cdi.jsf.impl.security.SecurityInterceptor</class>
<class>org.apache.myfaces.extensions.cdi.jsf.impl.listener.phase.ViewControllerInterceptor</class>
<class>org.apache.myfaces.extensions.cdi.jsf.impl.scope.conversation.CloseConversationGroupInterceptor</class>
<class>org.apache.myfaces.extensions.cdi.jsf.impl.config.view.PageParameterInterceptor</class>
<class>org.apache.myfaces.extensions.cdi.jsf.impl.config.view.PageParameterListInterceptor</class>
<class>org.apache.myfaces.extensions.cdi.jpa.impl.transaction.TransactionalInterceptor</class>
</interceptors>
</beans>

Answer 1

Why not use the latest MyFaces version? There is even a 2.0.24...
EDIT #1 - from the comments
I'd perform the following more steps based on the instructions from user #tandraschko in the comment thread below.
Side Note: I'm grateful to #tandraschko for the timely response & clear instructions.
Upgraded MyFaces version initially from 2.0.20 --> 2.0.24 but later to 2.3.10.
Upgraded OpenWebBeans version from 2.0.20 to 2.0.27.
Added the MyFaces listener StartupServletContextListener AFTER the OpenWebBeans one.
Cleaned up Maven dependencies to include all dependencies in the webapp's WEB-INF\lib (in contrast to a few at the sample which are of scope provided).