Exception starting filter in Struts2

[Raman Ghai]

Hi there ,
I have a Struts2 Hello World application in Eclipse JUNO for EE developers which is giving this weird exception when I try to deploy it on Tomcat7.
Here is the exception :

Feb 01, 2013 4:44:05 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre7\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files (x86)\PC Connectivity Solution\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;c:\Program Files\WIDCOMM\Bluetooth Software\;c:\Program Files\WIDCOMM\Bluetooth Software\syswow64;C:\Program Files\Java\jdk1.7.0\bin;.
Feb 01, 2013 4:44:05 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:SampleWebApp' did not find a matching property.
Feb 01, 2013 4:44:05 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:HelloStruts2' did not find a matching property.
Feb 01, 2013 4:44:05 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Feb 01, 2013 4:44:05 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Feb 01, 2013 4:44:05 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 809 ms
Feb 01, 2013 4:44:05 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Feb 01, 2013 4:44:05 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.35
Feb 01, 2013 4:44:07 PM com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
INFO: Parsing configuration file [struts-default.xml]
Feb 01, 2013 4:44:07 PM org.apache.catalina.core.StandardContext filterStart
SEVERE: Exception starting filter struts2
java.lang.NoClassDefFoundError: org/apache/commons/lang3/StringUtils
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:211)
	at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:102)
	at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:215)
	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
	at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:429)
	at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:471)
	at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:193)
	at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4656)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5312)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
	at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang3.StringUtils
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
	... 20 more

Feb 01, 2013 4:44:07 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error filterStart
Feb 01, 2013 4:44:07 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/HelloStruts2] startup failed due to previous errors
Feb 01, 2013 4:44:07 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Feb 01, 2013 4:44:07 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Feb 01, 2013 4:44:07 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1486 ms
Feb 01, 2013 4:44:07 PM org.apache.catalina.core.StandardServer await
SEVERE: StandardServer.await: create[localhost:8005]: 
java.net.BindException: Address already in use: JVM_Bind
	at java.net.DualStackPlainSocketImpl.bind0(Native Method)
	at java.net.DualStackPlainSocketImpl.socketBind(Unknown Source)
	at java.net.AbstractPlainSocketImpl.bind(Unknown Source)
	at java.net.PlainSocketImpl.bind(Unknown Source)
	at java.net.ServerSocket.bind(Unknown Source)
	at java.net.ServerSocket.<init>(Unknown Source)
	at org.apache.catalina.core.StandardServer.await(StandardServer.java:427)
	at org.apache.catalina.startup.Catalina.await(Catalina.java:766)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:712)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:456)

Feb 01, 2013 4:44:07 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-bio-8080"]
Feb 01, 2013 4:44:08 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["ajp-bio-8009"]
Feb 01, 2013 4:44:09 PM org.apache.catalina.core.StandardService stopInternal
INFO: Stopping service Catalina
Feb 01, 2013 4:44:09 PM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-bio-8080"]
Feb 01, 2013 4:44:10 PM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["ajp-bio-8009"]
Feb 01, 2013 4:44:11 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-bio-8080"]
Feb 01, 2013 4:44:11 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["ajp-bio-8009"]

web/WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee" 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"
	id="WebApp_ID" version="3.0">
	<display-name>HelloStruts2</display-name>
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
	<filter>
		<filter-name>struts2</filter-name>
		<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>struts2</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
</web-app>

web/WEB-INF/struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
   "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
   "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
	<constant name="struts.devMode" value="true"/>
	<package name="helloworld" extends="struts-default">
		<action name="hello" class="com.hello.struts.HelloWorldAction"
			method="execute">
			<result name="success">/HelloWorld.jsp</result>
		</action>
	</package>
</struts>

1. If I remove the

<filter> and <filter-mapping> 

entry from the web.xml file , the application gets deployed but does not open the HelloWorld.jsp page.
2. I read somewhere to make the value of devMode to false but even it didn't help.
3. I tried using org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter as filter class but even it did not help.

Please help .

[Joe Ess]

java.lang.NoClassDefFoundError: org/apache/commons/lang3/StringUtils  

Looks like you are missing a dependency. What version of Struts are you using and what is in your WEB-INF/lib directory?