[ https://issues.apache.org/jira/browse/WW-3697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13143789#comment-13143789 ] 

Lukasz Lenart commented on WW-3697:
-----------------------------------

You must replace all the libs that changed, like commons-fileupload, commons-io, ognl, javassist. You can leave freemarker but throw away log4j. And it's better to ask on the ML first.

http://struts.apache.org/mail.html
                
> java.lang.NoClassDefFoundError since updated to 2.2.3.1 version struts2-core, xwork-core. 
> ------------------------------------------------------------------------------------------
>
>                 Key: WW-3697
>                 URL: https://issues.apache.org/jira/browse/WW-3697
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Core Actions
>    Affects Versions: 2.2.3.1
>         Environment: Windows 7 32 bits, Eclipse Indigo 1.4.1 20110909-1818 (Eclipse Platform 3.7.1.M20110909-1335), Tomcat 7.0.22, java.runtime.name=Java(TM) SE Runtime Environment, java.runtime.version=1.6.0_20-b02, java.vm.version=16.3-b01
>            Reporter: Carles Millan
>              Labels: issue, update
>             Fix For: 2.2.3
>
>
> Download the struts2 examples from http://code.google.com/p/struts2-examples/downloads/list. 
> Example: http://code.google.com/p/struts2-examples/downloads/detail?name=Basic_Struts_2_Ant_2_2_1.zip
> If the jar included in the Eclipse lib are from version 2.2.1 the example runs well. 
> Replace with the 2.2.3.1 versions: struts2-core-2.2.3.1.jar and xwork-core-2.2.3.1.jar and run the example.
> The web page will report an "HTTP: 404 The requested resource (/Esborrar_02/) is not available."
> Recover the 2.2.1 jar version an it's running propertly.
> I'm a newbie and maybe it's a configuration error, however replacing the libs it's enougth to get the example running.

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