从Tomcat 7迁移到8时的Jsf实现版本NullPointerException [英] Jsf implementation version NullPointerException when migrating from Tomcat 7 to 8
问题描述
我当前正在使用JSF 2.2.7和Icefaces 4.0.0版本.我的项目在Tomcat 7上运行，但在尝试使其在Tomcat 8上运行时遇到了麻烦.我遇到了空指针异常，因为icefaces代码中的方法似乎正在检查所用jsf的当前版本.这总是返回null，我似乎没有设置jsf的正确实现.堆栈跟踪如下:
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在 org.icefaces.util.EnvUtils.isJSF22(EnvUtils.java:976)在 org.icefaces.impl.context.DOMPartialViewContext.renderState(DOMPartialViewContext.java:743) 在 org.icefaces.impl.context.DOMPartialViewContext.processPartial(DOMPartialViewContext.java:301) 在 javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219) 在 javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004) 在javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856) 在 com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:430) 在 com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133) 在 javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337) 在 com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120) 在com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)处 com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219) 在javax.faces.webapp.FacesServlet.service(FacesServlet.java:647) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 在 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 在 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) 在 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) 在 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614) 在 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) 在 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 在 org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617) 在 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) 在 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) 在 org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) 在 org.apache.coyote.AbstractProtocol $ AbstractConnectionHandler.process(AbstractProtocol.java:668) 在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1527) 在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.run(NioEndpoint.java:1484) 在 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 在 java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:615) 在 org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run(TaskThread.java:61) 在java.lang.Thread.run(Thread.java:744)2015年8月4日上午7:50:52 com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException严重:错误呈现 在以下位置查看[/pages/Ports.xhtml] java.lang.NullPointerException org.icefaces.util.EnvUtils.isJSF22(EnvUtils.java:976)在 org.icefaces.impl.context.DOMPartialViewContext.renderState(DOMPartialViewContext.java:743) 在 org.icefaces.impl.context.DOMPartialViewContext.processPartial(DOMPartialViewContext.java:301) 在 javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219) 在 javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004) 在javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856) 在 com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:430) 在 com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133) 在 javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337) 在 com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120) 在com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)处 com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219) 在javax.faces.webapp.FacesServlet.service(FacesServlet.java:647) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 在 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 在 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) 在 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) 在 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614) 在 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) 在 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 在 org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617) 在 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) 在 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) 在 org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) 在 org.apache.coyote.AbstractProtocol $ AbstractConnectionHandler.process(AbstractProtocol.java:668) 在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1527) 在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.run(NioEndpoint.java:1484) 在 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 在 java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:615) 在 org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run(TaskThread.java:61) 在java.lang.Thread.run(Thread.java:744)2015年8月4日上午7:50:52 com.sun.faces.context.AjaxExceptionHandlerImpl handlePartialResponseError严重:java.lang.NullPointerException 在org.icefaces.util.EnvUtils.isJSF22(EnvUtils.java:976)处 org.icefaces.impl.context.DOMPartialViewContext.renderState(DOMPartialViewContext.java:743) 在 org.icefaces.impl.context.DOMPartialViewContext.processPartial(DOMPartialViewContext.java:301) 在 javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219) 在 javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004) 在javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856) 在 com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:430) 在 com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133) 在 javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337) 在 com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120) 在com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)处 com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219) 在javax.faces.webapp.FacesServlet.service(FacesServlet.java:647) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 在 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 在 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) 在 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) 在 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614) 在 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) 在 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 在 org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617) 在 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) 在 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) 在 org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) 在 org.apache.coyote.AbstractProtocol $ AbstractConnectionHandler.process(AbstractProtocol.java:668) 在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1527) 在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.run(NioEndpoint.java:1484) 在 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 在 java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:615) 在 org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run(TaskThread.java:61) 在java.lang.Thread.run(Thread.java:744)
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)
仔细检查，似乎getImplementationVersion()方法返回null:
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");
}
这是我的带有IceFaces和JSF依赖项的pom.xml.我不确定如何设置我的JSF实现.
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>
这是在我的war文件WEB-INF/lib文件夹中创建的jar文件的完整列表:
This is the complete list of jar files creates in my war file WEB-INF/lib folder:
ace-cupertino-4.0.0.jar
激活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
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
在javax.faces-2.2.7.jar和META-INF/MANIFEST.MF内部，我可以看到实现版本设置为2.2.7.所以我不知道在运行时被icefaces代码引用时实现版本如何为null.
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.
有人可以帮忙吗?
感谢-有关更多信息，请访问: http://www.icesoft. org/JForum/posts/list/22974.page#80376
Thanks - See more at: http://www.icesoft.org/JForum/posts/list/22974.page#80376
推荐答案
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.
至少升级到Mojarra 2.2.9(当前最新版本为2.2.12)应该可以解决您的问题.
Upgrading to at least Mojarra 2.2.9 (currently latest is 2.2.12) should solve your problem.
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