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From "Mohamad, HKB (Hammad)" <sbm82...@rl.ac.uk>
Subject NoClassDefFoundError: org/apache/commons/collections/ArrayStack
Date Fri, 22 Aug 2008 13:36:35 GMT
Hi,

I have just migrated from Tomcat 5 to Tomcat 6, but getting followinf
eror when I run the application,


22-Aug-2008 14:25:13 org.apache.catalina.core.StandardWrapperValve
invoke
SEVERE: Servlet.service() for servlet Cocoon2 threw exception
java.lang.NoClassDefFoundError:
org/apache/commons/collections/ArrayStack
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
	at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
	at
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappCla
ssLoader.java:1847)
	at
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader
.java:890)
	at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader
.java:1354)
	at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader
.java:1233)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
	at
org.apache.cocoon.components.CocoonComponentManager.enterEnvironment(Coc
oonComponentManager.java:128)
	at org.apache.cocoon.sitemap.Handler.process(Handler.java:221)
	at org.apache.cocoon.sitemap.Manager.invoke(Manager.java:173)
	at
org.apache.cocoon.sitemap.SitemapManager.process(SitemapManager.java:152
)
	at org.apache.cocoon.Cocoon.process(Cocoon.java:579)
	at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1043)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:290)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
	at
epub.app.filter.AuthorizationHttpFilter.doFilter(AuthorizationHttpFilter
.java:233)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
	at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:233)
	at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191)
	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:128)
	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:102)
	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
java:109)
	at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:2
86)
	at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:84
5)
	at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(
Http11Protocol.java:583)
	at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:595)

can you please help me out.

Thanks
Kasim

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