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ClassNotFoundException error

I am deploying a web application in Eclipse IDE and Jboss 7 . I get this error in server console:

15:32:14,423 WARN  [org.jboss.as.ee] (MSC service thread 1-6) JBAS011006: Not installing optional component org.apache.struts2.dispatcher.FilterDispatcher due to exception: java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.FilterDispatcher from [Module "deployment.SampleApp.war:main" from Service Module Loader]
      at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190) [jboss-modules.jar:1.1.1.GA]
      at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468) [jboss-modules.jar:1.1.1.GA]
      at org.



relevant web.xml entry:

<filter id="filterdispatcher">
            <filter-name>Struts2</filter-name>
            <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
                  <init-param>
                        <param-name>packages</param-name>
                        <param-value>images</param-value>
                </init-param>
      </filter>

      <filter-mapping>
            <filter-name>Struts2</filter-name>
            <url-pattern>/*</url-pattern>
      </filter-mapping>




I have already verified that web application's  WEB-INF/lib folder  has struts2-core-2.1.2.jar  ...and there is org.apache.struts2.dispatcher.FilterDispatcher present in this jar .

why this error then and how to fix this error ?
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cofactor
Asked:
cofactor
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2 Solutions
 
chaitu chaituCommented:
Please Make sure you have include six jar for basic Struts 2.0 Application.i think xwork-2.1.1.ja is necccssary .i think FilterDispatcher  is deprecated in struts2-core


1 ) struts2-core-2.1.2
2 ) xwork-2.1.1
3 ) freemarker-2.3.12
4 ) ognl-2.6.11
5 ) commons-collections-3.2
6 ) commons-logging-1.1

http://stumblingintojava.wordpress.com/2010/09/15/classnotfoundexception-filterdispatcher-struts2-in-eclipse/
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cofactorAuthor Commented:
yes..they are already there.


>>>i think xwork-2.1.1.ja is necccssary .

I have xwork-core-2.3.15.1.jar
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cofactorAuthor Commented:
>>>>i think FilterDispatcher  is deprecated in struts2-core

This class is present in struts2-core-2.1.2.jar

error says  java.lang.ClassNotFoundException:org.apache.struts2.dispatcher.FilterDispatcher
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CEHJCommented:
http://technojeeves.com/index.php/aliasjava1/7-jarsearch

Point the above at your WEB-INF/lib directory with parameter FilterDispatcher and tell us what you get
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cofactorAuthor Commented:
>>>I have xwork-core-2.3.15.1.jar

no, I have xwork-2.1.1.jar   ..typo
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cofactorAuthor Commented:
>>>>http://technojeeves.com/index.php/aliasjava1/7-jarsearch

where is  jarsearch.jar  in that link ?  there is no download link to download this utility in that page.
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CEHJCommented:
Yes, the link is in the page:

http://technojeeves.com/tech/jarsearch.jar

You can download the jar file HERE
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cofactorAuthor Commented:
>>>Point the above at your WEB-INF/lib directory with parameter FilterDispatcher and tell us what you get



I found the issue ....I had lib   folder outside  WEB-INF  i.e  SampleApp/lib

now I cut this lib folder and pasted into  SampleApp/WEB-INF/lib ....then eclipse clean build


Now  build error has come up in eclipse ...

The project was not built since its build path is incomplete. Cannot find the class file for java.lang.Object. Fix the build path then try building this project      SampleApp            Unknown      Java Problem
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chaitu chaituCommented:
clean the project using eclipse options-Project-Clean Project
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CEHJCommented:
Cannot find the class file for java.lang.Object.
Make sure you have the jdk set correctly in the build path. Sounds like you might have removed something during your repair
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cofactorAuthor Commented:
issue resolved.

it was a  classpath issue.
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