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,但是在尝试使其在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并且我似乎没有设置jsf的正确实现。堆栈跟踪如下:
org.icefaces.impl.context.DOMPartialViewContext.renderState(DOMPartialViewContext.java:743)处org.icefaces.util.EnvUtils.isJSF22(EnvUtils.java:976)处的java.lang.NullPointerException javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004)处的DOMPartialViewContext.processPartial(DOMPartialViewContext.java:301)在javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219)在javax.faces.component com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:430)上的.UIComponent.encodeAll(UIComponent.java:1856)在com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java) :133),位于javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337),位于com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120),位于com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101),位于com.sun.faces.lifecycle.LifecycleImpl org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)的javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)的.render(LifecycleImpl.java:219)位于org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)的catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)处org.apache.catalina.core.StandardWrapperValve。在org.apache上的org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)上的org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)上的invoke(StandardWrapperValve.java:219) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)的.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java :617)位于org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88),位于org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518),位于org.apache.coyote.http11。 org.apache.coyote.AbstractProtocol $ AbstractConnectionHandler上的AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)。org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1527)处的进程(AbstractProtocol.java:668)org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.run(NioEndpoint。的java.util.concurrent.ThreadPoolExecutor.runWorker(java:1484)(java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:615)处org.apache.tomcat.util.threads .TaskThread $ WrappingRunnable.run(TaskThread.java:61)at 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:错误呈现视图[/pages/Ports.xhtml] org.icefaces.impl.context.DOMPartialViewContext上的org.icefaces.util.EnvUtils.isJSF22(EnvUtils.java:976)上的java.lang.NullPointerException。org.icefaces.impl.context.DOMPartialViewContext.processPartial(DOMPartialViewContext.java:301)的renderState(DOMPartialViewContext.java:743)在javax.faces.component的javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219) .UIViewRoot.encodeChildren(UIViewRoot.java:1004)位于com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:430)位于javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856) com.sun.faces.lifecycle.RenderResponsePhase.execute()上的javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)上的com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133) RenderResponsePhase.java:120)位于com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)在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 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)上的org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)上的(ApplicationFilterChain.java:291)。 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)的apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)在org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve。 java:219),位于org.apache的org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)。org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)上的catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)在org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java: 79)在org.apache.catalina.valves.AbstractAccessLogValve.java:617在org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)在org.apache.catalina.connector.CoyoteAdapter .org上的.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。 org.apache.tomcat.util.net上的apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun(NioEndpoint.java:1527)。org上的java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)上的NioEndpoint $ SocketProcessor.run(org.org.java:1145)在org上的java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:615) .apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run(TaskThread.java:61)at java.lang.Thread.run(Thread.java:744)2015年8月4日,com.sun。 faces.context.AjaxExceptionHandlerImpl handlePartialResponseError严重:org.icefaces.impl.context.DOMPartialViewContext.renderState(DOMPartialViewContext.java:743处的java.lang.NullPointerException在org.icefaces.util.EnvUtils.isJSF22(EnvUtils.java:976) org.icefaces.impl.context.DOMPartialViewContext.processPartial(DOMPartialViewContext.java:301),位于javax.faces.context.PartialViewContextWrapper。com.sun.faces.application上javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)上的javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004)上的processPartial(PartialViewContextWrapper.java:219) .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) )的com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)的com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)的com.sun.faces.lifecycle.LifecycleImpl。 org.apache.catalina.core处的javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)处的render(LifecycleImpl.java:219)。org.apache.catalina.core上的ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)(位于org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)上的ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)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。位于org.apache.catalina的catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)。org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)处的阀.ErrorReportValve.invoke(ErrorReportValve.java:79)在org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)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),位于java.util.concurrent,位于java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)。org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run(TaskThread.java:61)处的ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:615)在java.lang.Thread.run(Thread.java:744)
经过仔细检查,似乎getImplementationVersion()方法返回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。
<?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:
ace-cupertino-4.0.0.jar 激活-1.1.jar 业务-0.0.1 -SNAPSHOT.jar common-0.0.1-SNAPSHOT.jar commons-beanutils-1.8.0.jar commons-logging-1.1.jar数据库- 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 邮件-1.4.1.jar mockito-all-1.9.5.jar poi-3.7.jar
查看javax.faces-2.2.7.jar和META-INF / MANIFEST.MF的内部内容,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。
有人可以帮忙吗?
谢谢- 有关更多信息,请访问:http : //www.icesoft.org/JForum/posts/list/22974.page#80376
这很可能是由于Mojarra 2.2.9中已根据问题3341修复了错误的上下文类加载器而导致的。
至少升级到Mojarra 2.2.9(当前最新为2.2.12)应该可以解决您的问题。