Spring Webflow和JSF：com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTagLibrary中的java.lang.NullPointerException

时间：2015-09-09 10:03:34

标签： maven jsf jsf-2.2 spring-webflow

我正在尝试使用Eclipse IDE构建一个使用spring webflow和JSF的webproject。所以我用JSF 2.2实现创建了一个动态Web项目。然而，在尝试运行该项目时，我得到了一些例外。下面是我的Maven配置文件。

的pom.xml 

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.breathejava</groupId>
  <artifactId>WebFlowDemo2</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>SWF_Example Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <properties>
    <spring.version>4.0.1.RELEASE</spring.version>
    <swf.version>2.4.0.RELEASE</swf.version>
  </properties>
  <dependencies>
       <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>      
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.webflow</groupId>
      <artifactId>spring-webflow</artifactId>
      <version>${swf.version}</version>
    </dependency>
    <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
<dependency>
    <groupId>com.sun.facelets</groupId>
    <artifactId>jsf-facelets</artifactId>
    <version>1.1.14</version>
</dependency>

<dependency>
    <groupId>javax.faces</groupId>
    <artifactId>javax.faces-api</artifactId>
    <version>2.2</version>
</dependency>

  </dependencies>
  <build>
    <finalName>WebFlowDemo2</finalName>
  </build>
</project>

堆栈跟踪 

SEVERE: Critical error during deployment: 
com.sun.faces.config.ConfigurationException: CONFIGURATION FAILED! null
    at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:449)
    at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:214)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5017)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5531)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1574)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1564)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
    at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTagLibrary(FaceletTaglibConfigProcessor.java:326)
    at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.process(FaceletTaglibConfigProcessor.java:270)
    at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:437)
    ... 10 more

Sep 09, 2015 3:26:09 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class com.sun.faces.config.ConfigureListener
java.lang.RuntimeException: com.sun.faces.config.ConfigurationException: CONFIGURATION FAILED! null
    at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:273)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5017)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5531)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1574)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1564)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: com.sun.faces.config.ConfigurationException: CONFIGURATION FAILED! null
    at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:449)
    at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:214)
    ... 9 more
Caused by: java.lang.NullPointerException
    at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTagLibrary(FaceletTaglibConfigProcessor.java:326)
    at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.process(FaceletTaglibConfigProcessor.java:270)
    at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:437)
    ... 10 more

Sep 09, 2015 3:26:09 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: One or more listeners failed to start. Full details will be found in the appropriate container log file
Sep 09, 2015 3:26:09 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/JSF_Webflow] startup failed due to previous errors
Sep 09, 2015 3:26:09 PM javax.faces.FactoryFinder$FactoryManager getFactory
SEVERE: Application was not properly initialized at startup, could not find Factory: javax.faces.application.ApplicationFactory. Attempting to find backup.
Sep 09, 2015 3:26:09 PM com.sun.faces.config.ConfigureListener contextDestroyed
SEVERE: Unexpected exception when attempting to tear down the Mojarra runtime
java.lang.IllegalStateException: Could not find backup for factory javax.faces.application.ApplicationFactory. 
    at javax.faces.FactoryFinder$FactoryManager.getFactory(FactoryFinder.java:1135)
    at javax.faces.FactoryFinder.getFactory(FactoryFinder.java:379)
    at com.sun.faces.config.InitFacesContext.getApplication(InitFacesContext.java:140)
    at com.sun.faces.config.ConfigureListener.contextDestroyed(ConfigureListener.java:310)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:5064)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5726)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:160)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1574)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1564)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

导致此例外的原因是什么？是什么原因和解决方案是什么？

0 个答案:

没有答案
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