struts

Hi,
I have this JSP which uses some tlds. I have all these tlds directly under web-inf. I get the following exception. Could you tell me if it's an issue with placing files at the wrong location?
The struts.jar file is in its right position (under lib directory of the web app)
Someone please help me!
Thanks,
chandana
JSP
---
<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<html:html locale="true">
<head>
<html:base/>
<title><bean:message key="index.title"/></title>
</head>
<body bgcolor="white">
<h2>Create a book</h2>
<html:errors/>
<html:form action="createBook.do" method="GET">
Title:<html:text property="title"/> <br/>
<html:submit property="submit"/>
</html:form>
</body>
</html:html>
------------------------
EXCEPTION
-------------------------
Error 500--Internal Server Error
java.lang.NoClassDefFoundError
at jsp_servlet.__createbook._jspService(__createbook.java:157)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)

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We have a special forum just for Struts questions, so I have moved this thread there for you.

The TLD references in your JSP are correct, and the struts.jar is in WEB-INF/lib as it should be. So, the next question is, which class is the NoClassDefFoundError referring to? Does the stack trace really not tell the name of the missing class?
If I had to guess, I'd say you're missing some commons-* library from your WEB-INF/lib directory. Here's a list of the .jar files my Struts 1.1 distribution has included in the sample webapp's lib directory: