JBuilder 5 and Validator Framework

[Chen, Yong]

Hi, 

I am using Jbuilder 5, Tomcat 3.2 to develop my web app in struts framework.
I tried to integrate David Winterfeldt's
<http://home.earthlink.net/~dwinterfeldt/> Validation framework into my
project, however, I got this error when Tomcat is trying to load
validation.xml file:
2001-11-26 03:09:46 - path="/mystruts" :validator: init 
2001-11-26 03:09:46 - path="/mystruts" :validator: Loading validation file
from '/WEB-INF/validation.xml' 
java.lang.NoClassDefFoundError: org/xml/sax/helpers/DefaultHandler      
        at java.lang.ClassLoader.defineClass0(Native Method)    
        at java.lang.ClassLoader.defineClass(ClassLoader.java:486)      
        at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)

        at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)

        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)       
        at java.security.AccessController.doPrivileged(Native Method)   
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)   
        at java.lang.ClassLoader.loadClass(ClassLoader.java:297)        
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:253)        
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)

        at
com.wintecinc.struts.validation.ValidatorResourcesInitializer.initialize(Val
idatorResourcesInitializer.java:142)    
        at
com.wintecinc.struts.validation.ValidatorResourcesInitializer.initialize(Val
idatorResourcesInitializer.java:123)    
        at
com.wintecinc.struts.action.ValidatorServlet.initMapping(ValidatorServlet.ja
va:223)         
        at
com.wintecinc.struts.action.ValidatorServlet.init(ValidatorServlet.java:123)

        at javax.servlet.GenericServlet.init(GenericServlet.java:258)   
        at
org.apache.tomcat.core.ServletWrapper.doInit(ServletWrapper.java:317)   
        at org.apache.tomcat.core.Handler.init(Handler.java:215)        
        at
org.apache.tomcat.core.ServletWrapper.init(ServletWrapper.java:296)     
        at
org.apache.tomcat.context.LoadOnStartupInterceptor.contextInit(LoadOnStartup
Interceptor.java:130)   
        at
org.apache.tomcat.core.ContextManager.initContext(ContextManager.java:491)

        at
org.apache.tomcat.core.ContextManager.init(ContextManager.java:453)     
        at org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:195)    
        at org.apache.tomcat.startup.Tomcat.main(Tomcat.java:235) 
Exception in thread "main" 

Any idea? 

Yong Chen


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