Jsf implementation version NullPointerException when migrating from Tomcat 7 to 8 - maven

Question

I am currently using JSF 2.2.7 and Icefaces version 4.0.0. My project was running on Tomcat 7, but I am having trouble trying to get it working on Tomcat 8. I am getting a null pointer exception as a method in the icefaces code seems to check the current version of jsf being used. This always return null and i do not seem to be setting the correct implementation of jsf. The stack trace is as follows:
java.lang.NullPointerException at
org.icefaces.util.EnvUtils.isJSF22(EnvUtils.java:976) at
org.icefaces.impl.context.DOMPartialViewContext.renderState(DOMPartialViewContext.java:743)
at
org.icefaces.impl.context.DOMPartialViewContext.processPartial(DOMPartialViewContext.java:301)
at
javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219)
at
javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)
at
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:430)
at
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133)
at
javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1527)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1484)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:744) Aug 04, 2015 7:50:52 AM
com.sun.faces.application.view.FaceletViewHandlingStrategy
handleRenderException SEVERE: Error Rendering
View[/pages/Ports.xhtml] java.lang.NullPointerException at
org.icefaces.util.EnvUtils.isJSF22(EnvUtils.java:976) at
org.icefaces.impl.context.DOMPartialViewContext.renderState(DOMPartialViewContext.java:743)
at
org.icefaces.impl.context.DOMPartialViewContext.processPartial(DOMPartialViewContext.java:301)
at
javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219)
at
javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)
at
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:430)
at
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133)
at
javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1527)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1484)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:744) Aug 04, 2015 7:50:52 AM
com.sun.faces.context.AjaxExceptionHandlerImpl
handlePartialResponseError SEVERE: java.lang.NullPointerException
at org.icefaces.util.EnvUtils.isJSF22(EnvUtils.java:976) at
org.icefaces.impl.context.DOMPartialViewContext.renderState(DOMPartialViewContext.java:743)
at
org.icefaces.impl.context.DOMPartialViewContext.processPartial(DOMPartialViewContext.java:301)
at
javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219)
at
javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)
at
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:430)
at
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133)
at
javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1527)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1484)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:744)
On closer inspection it seems that the getImplementationVersion() method is returning null:
/**
* Determine whether the current JSF implementation is version 2.2
* #return true if JSF implementation is 2.2
*/
public static boolean isJSF22() {
return FacesContext.class.getPackage().getImplementationVersion().startsWith("2.2");
}
Here is my pom.xml with the IceFaces and JSF dependencies. I am unsure how my JSF implementation is not set.
<?xml version="1.0"?>
<project
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>oag.com.reference</groupId>
<artifactId>web</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>ReferenceDataWeb </name>
<packaging>war</packaging>
<description>Reference data web project.</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<sonar.core.codeCoveragePlugin>jacoco</sonar.core.codeCoveragePlugin>
<sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.6</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.0.201403182114</version>
<executions>
<execution>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
</executions>
<configuration>
<destFile>${sonar.jacoco.reportPath}</destFile>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.icefaces</groupId>
<artifactId>icefaces</artifactId>
<version>4.0.0</version>
</dependency>
<dependency>
<groupId>org.icefaces</groupId>
<artifactId>icefaces-ace</artifactId>
<version>4.0.0</version>
</dependency>
<dependency>
<groupId>org.icepush</groupId>
<artifactId>icepush</artifactId>
<version>4.0.0</version>
</dependency>
<dependency>
<groupId>org.icefaces</groupId>
<artifactId>icefaces-compat</artifactId>
<version>3.3.0</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>com.oag.reference</groupId>
<artifactId>business</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.7</version>
</dependency>
<dependency>
<groupId>org.icefaces.ace-themes</groupId>
<artifactId>ace-cupertino</artifactId>
<version>4.0.0</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.sun.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>2.2.7</version>
</dependency>
<dependency>
<groupId>com.sun.faces</groupId>
<artifactId>jsf-impl</artifactId>
<version>2.2.7</version>
</dependency>
</dependencies>
</dependencyManagement>
</project>
This is the complete list of jar files creates in my war file WEB-INF/lib folder:
ace-cupertino-4.0.0.jar
activation-1.1.jar
business-0.0.1-SNAPSHOT.jar
common-0.0.1-SNAPSHOT.jar
commons-beanutils-1.8.0.jar
commons-logging-1.1.jar
database-0.0.1-SNAPSHOT.jar
db2jcc4-1.0.0.jar
hamcrest-core-1.1.jar
icefaces-4.0.0.jar
icefaces-ace-4.0.0.jar
icepush-4.0.0.jar
javax.faces-2.2.7.jar
jstl-1.2.jar
junit-4.9.jar
mail-1.4.1.jar
mockito-all-1.9.5.jar
poi-3.7.jar
Looking inside the javax.faces-2.2.7.jar and META-INF/MANIFEST.MF i can see that the implementation version is set to 2.2.7. So I have no idea how the implementation version is null when referenced by the icefaces code at runtime.
Can anybody help please?
Thanks - See more at: http://www.icesoft.org/JForum/posts/list/22974.page#80376

Answer 1

This is most likely caused by a bug of having the wrong context class loader at hands which was fixed in Mojarra 2.2.9 as per issue 3341.
Upgrading to at least Mojarra 2.2.9 (currently latest is 2.2.12) should solve your problem.