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Date: Tue, 06 Dec 2005 06:30:15 -0500
From: Tim Funk <funkman@joedog.org>
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To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Question concerning java.lang.NoClassDefFoundError:
 javax/servlet/ServletContext
References: <002b01c425d6$21d2aae0$6401a8c0@JohnLaptop>
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See - http://tomcat.apache.org/faq/classnotfound.html

Odds are you have your own servlet-api.jar somewhere in the webapp or system 
classpath and that is conflicting with the one in common/lib (installed by 
tomcat)

-Tim

John Poley wrote:
> Please forgive my intrusion if this is not the proper place to post a questoon of this sort.  I am new to servlets, and am working on my first deployment- but I am running in to a problem that I can't find a solution to.  I have installed Tomcat 5.5 and am using Eclipse (as well as a tomcat plugin) to manage my project.   A colleague of mine sent me a war file of out working projected, which I imported to my IDE.  I start tomcat, which seems to load properly, and attempt to run the project on the server- where I am faced with the following:
> 
> 
> javax.servlet.ServletException: Servlet.init() for servlet RequestTranslator threw exception
> 
> root cause 
> 
> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
> 	java.lang.Class.getDeclaredConstructors0(Native Method)
> 	java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
> 	java.lang.Class.getConstructor0(Unknown Source)
> 	java.lang.Class.getConstructor(Unknown Source)
> 	freemarker.template.Configuration.setServletContextForTemplateLoading(Configuration.java:331)
> 	verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
> 	verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
> 	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
> 	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> 	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
> 	org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
> 	org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
> 	org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
> 	org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
> 	java.lang.Thread.run(Unknown Source)
> I am using the most recent J2RE 5 and I am certain that Tomcat's servlet-api.jar is within my application's class path.  I am not sure why the source cannot be found.  Any helpin locating my problem would be greatly appreciated, and I would be happy to prove more information if needed (I'm not entirely sure what would be helpful).  And again, I am sorry if this is not the place for this kind of question!Happy coding!John
> 

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