Unexpected FacesException thrown during launch of JSF webapp on the browser - primefaces

Question

I'm new to JSF and was asked to migrate an old MyFaces 2.0 webapp (app1) from WebLogic Server 12.1.3 to Tomcat (I chose Tomcat 9 and OpenWebBeans 2.0.27). This was achieved only after being directed to upgrade MyFaces Core to version 2.3.10 (but with no major change in the webapp itself) following the assistance and clear instructions from user #tandraschko .
After an apparent error-free start-up of the webapp, launching the application on the browser (http://localhost:8080/app1/) resulted in a blank page (after correctly redirecting to http://localhost:8080/app1/xhtml/appsSuite.xhtml) with the logs revealing errors/exceptions.
After combing through SO, I wasn't able to find any post which could provide clues to address my issue. Since there is neither an NPE nor stack traces in the logs, I'm stuck.
I'd be grateful for any assistance or direction to help debug this unexpected Faces exception.
Configuration
MyFaces 2.0 (but with MyFaces Core 2.3.10)
CODI 1.0.5
PrimeFaces 4.0
OpenWebBeans 2.0.27 (CDI 2.0 but beans_1_0 in beans.xml)
Tomcat 9
Java 8
Exception
Side Question: Is it OK to ignore the WARNING below?
...
04-Jul-2022 17:26:01.689 INFO [main] org.apache.webbeans.lifecycle.AbstractLifeCycle.bootstrapApplication OpenWebBeans Container has started, it took [21749] ms.
...
04-Jul-2022 17:26:09.240 INFO [main] org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces ServletContext initialized.
...
04-Jul-2022 17:26:09.576 INFO [main] org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized MyFaces Core has started, it took [7885] ms.
04-Jul-2022 17:26:09.707 INFO [main] com.sun.jersey.api.core.PackagesResourceConfig.init Scanning for root resource and provider classes in the packages:
com.company.app1.enterprise.service.health
04-Jul-2022 17:26:09.811 INFO [main] com.sun.jersey.api.core.ScanningResourceConfig.logClasses Root resource classes found:
class com.company.app1.enterprise.service.health.HeartbeatService
04-Jul-2022 17:26:09.812 INFO [main] com.sun.jersey.api.core.ScanningResourceConfig.init No provider classes found.
04-Jul-2022 17:26:10.060 INFO [main] com.sun.jersey.server.impl.cdi.CDIComponentProviderFactoryInitializer.initialize CDI support is enabled
04-Jul-2022 17:26:10.090 INFO [main] com.sun.jersey.server.impl.application.WebApplicationImpl._initiate Initiating Jersey application, version 'Jersey: 1.18 11/22/2013 01:21 AM'
04-Jul-2022 17:26:12.281 WARNING [main] com.sun.jersey.spi.inject.Errors.processErrorMessages The following warnings have been detected with resource and/or provider classes:
WARNING: A HTTP GET method, public java.lang.String com.company.app1.enterprise.service.health.HeartbeatService.pulse(java.lang.String), should not consume any entity.
04-Jul-2022 17:26:12.403 INFO [main] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [C:\apache-tomcat-9.0.63\webapps\app1.war] has finished in [59,791] ms
...
04-Jul-2022 17:26:14.760 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in [62776] milliseconds
04-Jul-2022 17:29:44.055 INFO [http-nio-8080-exec-1] org.apache.myfaces.extensions.cdi.jpa.impl.JpaModuleStartupObserver.logJpaModuleConfiguration [Started] MyFaces CODI JPA-Module v1.0.5
04-Jul-2022 17:29:44.080 INFO [http-nio-8080-exec-1] org.apache.myfaces.extensions.cdi.core.impl.CoreStartupObserver.logCoreConfiguration [Started] MyFaces CODI (Extensions CDI) Core v1.0.5
Used CDI implementation: OpenWebBeans v2.0.27
project-stage: Production
project-stage class: org.apache.myfaces.extensions.cdi.core.api.projectstage.ProjectStage$Production
application-parameters:
name: org.apache.myfaces.config.annotation.LifecycleProvider
value: org.apache.myfaces.config.annotation.NoInjectionAnnotationLifecycleProvider
name: javax.faces.PROJECT_STAGE
value: Production
name: primefaces.THEME
value: casablanca
name: javax.faces.STATE_SAVING_METHOD
value: client
name: javax.servlet.jsp.jstl.fmt.localizationContext
value: resources.application
name: javax.faces.FACELETS_SKIP_COMMENTS
value: true
name: javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE
value: true
config implementation: org.apache.myfaces.extensions.cdi.core.api.config.CodiCoreConfig$$OwbNormalScopeProxy0
config implementation: org.apache.myfaces.extensions.cdi.core.api.config.CodiCoreConfig
method: isAdvancedQualifierRequiredForDependencyInjection
value: true
method: isConfigurationLoggingEnabled
value: true
method: isInvalidBeanCreationEventEnabled
value: false
04-Jul-2022 17:29:44.086 INFO [http-nio-8080-exec-1] org.apache.myfaces.extensions.cdi.scripting.impl.ScriptingModuleStartupObserver.logScriptingModuleConfiguration [Started] MyFaces CODI Scripting-Module v1.0.5
04-Jul-2022 17:29:44.117 INFO [http-nio-8080-exec-1] org.apache.myfaces.extensions.cdi.jsf2.impl.Jsf2ModuleStartupObserver.logJsfModuleConfiguration [Started] MyFaces CODI JSF-Module v1.0.5 for JSF 2.0
Used JSF implementation: MyFaces Core v2.3.10
config implementation: org.apache.myfaces.extensions.cdi.jsf.api.config.JsfModuleConfig$$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$$OwbNormalScopeProxy0
config implementation: org.apache.myfaces.extensions.cdi.core.api.scope.conversation.config.WindowContextConfig
method: isAddWindowIdToActionUrlsEnabled
value: false
method: getWindowContextTimeoutInMinutes
value: 60
method: isCloseWindowContextEventEnabled
value: false
method: isUrlParameterSupported
value: true
method: isUnknownWindowIdsAllowed
value: false
method: getMaxWindowContextCount
value: 64
method: isCloseEmptyWindowContextsEnabled
value: false
method: isCreateWindowContextEventEnabled
value: false
method: isEagerWindowContextDetectionEnabled
value: true
config implementation: org.apache.myfaces.extensions.cdi.core.api.scope.conversation.config.ConversationConfig$$OwbNormalScopeProxy0
config implementation: org.apache.myfaces.extensions.cdi.core.api.scope.conversation.config.ConversationConfig
method: getConversationTimeoutInMinutes
value: 30
method: isStartConversationEventEnabled
value: false
method: isCloseConversationEventEnabled
value: false
method: isConversationRequiredEnabled
value: true
method: isRestartConversationEventEnabled
value: false
method: isAccessBeanEventEnabled
value: false
method: isUnscopeBeanEventEnabled
value: false
method: isScopeBeanEventEnabled
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
04-Jul-2022 17:29:44.121 INFO [http-nio-8080-exec-1] org.apache.myfaces.extensions.cdi.bv.impl.BeanValidationModuleStartupObserver.logBeanValidationModuleConfiguration [Started] MyFaces CODI Bean-Validation-Module v1.0.5
17:29:45.493 [http-nio-8080-exec-1] ERROR com.company.app1.enterprise.exception.app1ExceptionHandler - ExpHandler: current exception:class javax.faces.FacesException
17:29:45.495 [http-nio-8080-exec-1] ERROR com.company.app1.enterprise.exception.app1ExceptionHandler - ExpHandler: current exception component:null
17:29:45.497 [http-nio-8080-exec-1] ERROR com.company.app1.enterprise.exception.app1ExceptionHandler - ExpHandler: current exception phaseid:RENDER_RESPONSE(6)
17:29:45.506 [http-nio-8080-exec-1] ERROR com.company.app1.enterprise.exception.app1ExceptionHandler - ExpHandler: current exception: attributes{}
web.xml
<?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-name>GzipFilter</filter-name>
<url-pattern>*.css</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>GzipFilter</filter-name>
<url-pattern>*.xhtml</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>GzipFilter</filter-name>
<url-pattern>*.html</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>GzipFilter</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>GzipFilter</filter-name>
<url-pattern>/</url-pattern>
</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>
pom.xml (abridged)
<?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>
<!-- Used by: TODO: (unknown) -->
<dependency>
<groupId>commons-digester</groupId>
<artifactId>commons-digester</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>javax.ejb</groupId>
<artifactId>javax.ejb-api</artifactId>
<version>3.2.2</version>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0.1</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-client</artifactId>
<version>1.18</version>
</dependency>
<!-- MyFaces Core -->
<dependency>
<groupId>org.apache.myfaces.core</groupId>
<artifactId>myfaces-api</artifactId>
<version>2.3.10</version>
</dependency>
<dependency>
<groupId>org.apache.myfaces.core</groupId>
<artifactId>myfaces-impl</artifactId>
<version>2.3.10</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>