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From Parvaze Suleman <parvaze.sule...@rubus.com>
Subject Struts-Validator problem: NoClassDefFoundError
Date Thu, 01 Nov 2001 12:52:22 GMT
Hi 
I am trying to use Validator in my application and can not get it to work. I
have a single test form that I would like to use the Validator for
client-side and server-side validation. If I add the following

<%@ taglib uri="/WEB-INF/struts-validator.tld" prefix="validator" %>

reference to the taglib to the test form JSP page, when I access this JSP
page after deploying the application, I get a NoClassDefFoundError exception
thrown (see full message at the end of this email). If I remove the taglib
reference, I don't get the error but the validation rules don't get applied
either.

The latest version of the struts-validator.jar file and the
struts-validator.tld files are in the WEB-INF/libs directory.

Thanks in advance for any help received.

============================================================


My web.xml file is defined as follows:

.....
   <servlet>
      <servlet-name>validator</servlet-name>
 
<servlet-class>com.wintecinc.struts.action.ValidatorServlet</servlet-class>
      <init-param>
         <param-name>config</param-name>
         <param-value>/WEB-INF/validation.xml</param-value>
      </init-param>
      <init-param>
         <param-name>debug</param-name>
         <param-value>2</param-value>
      </init-param>
      <load-on-startup>2</load-on-startup>
   </servlet>
....

   <taglib>
      <taglib-uri>/tags/struts-validator.tld</taglib-uri>
      <taglib-location>/WEB-INF/struts-validator.tld</taglib-location>
   </taglib>   
....


My Validation.xml file is defined as below:

<form-validation>
   <global>

      <validator name="required"
                 classname="com.wintecinc.struts.validation.StrutsValidator"
                 method="validateRequired"
                 msg="error.required">
         <javascript><![CDATA[
            function validateRequired(form) {
                var bValid = true;
                var focusField = null;
                var i = 0;
                var fields = new Array();
                oRequired = new required();

                for (x in oRequired) {
                    if ((form[oRequired[x][0]].type == 'text' ||
form[oRequired[x][0]].type == 'textarea' || form[oRequired[x][0]].type ==
'select' || form[oRequired[x][0]].type == 'radio' ||
form[oRequired[x][0]].type == 'password') && form[oRequired[x][0]].value ==
'') {
                       if (i == 0)
                          focusField = form[oRequired[x][0]];

                       fields[i++] = oRequired[x][1];

                       bValid = false;
                    }
                }

                if (fields.length > 0) {
                   focusField.focus();
                   alert(fields.join('\n'));
                }

                return bValid;
            }]]>
         </javascript>
      </validator>
   </global>
   <formset>
      <form    name="personalDetailsForm">
         <field    property="fName"
                   depends="required,mask">
            <arg0  key="label.fname"/>
            <msg name="mask"
key="prompt.personalDetailsForm.fname.maskmsg"/>
            <arg0 key="label.fname"/>
            <var>
              <var-name>mask</var-name>
              <var-value>^[a-zA-Z]*$</var-value>
            </var>
         </field>
      </form>
   </formset>
</form-validation>




ERROR TEXT
======================================================

<01-Nov-01 11:37:51 GMT> <Info> <HTTP>
<[WebAppServletContext(2791227,olympus,/olympus)] r
esolved taglib uri '/WEB-INF/struts-html.tld' to taglib-location
/WEB-INF/struts-html.tld:
>
<01-Nov-01 11:37:52 GMT> <Error> <HTTP>
<[WebAppServletContext(2791227,olympus,/olympus)]
Servlet failed with Exception
java.lang.NoClassDefFoundError: org/apache/struts/action/ActionMessage
        at java.lang.Class.getMethods0(Native Method)
        at java.lang.Class.getDeclaredMethods(Class.java:1039)
        at java.beans.Introspector$1.run(Introspector.java:852)
        at java.security.AccessController.doPrivileged(Native Method)
        at
java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:850)
        at java.beans.Introspector.getTargetEventInfo(Introspector.java:556)
        at java.beans.Introspector.getBeanInfo(Introspector.java:294)
        at java.beans.Introspector.getBeanInfo(Introspector.java:128)
        at
weblogic.servlet.jsp.StandardTagLib.parseTagDD(StandardTagLib.java:1003)
        at
weblogic.servlet.jsp.StandardTagLib.parseDD(StandardTagLib.java:941)
        at
weblogic.servlet.jsp.StandardTagLib.<init>(StandardTagLib.java:207)
        at weblogic.servlet.jsp.JspLexer.loadTagLib(JspLexer.java:145)
        at
weblogic.servlet.jsp.JspLexer.mTAGLIB_DIRECTIVE_BODY(JspLexer.java:4177)
        at
weblogic.servlet.jsp.JspLexer.mTAGLIB_DIRECTIVE(JspLexer.java:4018)
        at weblogic.servlet.jsp.JspLexer.mDIRECTIVE(JspLexer.java:3865)
        at weblogic.servlet.jsp.JspLexer.mSTANDARD_THING(JspLexer.java:2039)
        at weblogic.servlet.jsp.JspLexer.mTOKEN(JspLexer.java:1853)
        at weblogic.servlet.jsp.JspLexer.nextToken(JspLexer.java:1735)
        at weblogic.servlet.jsp.JspLexer.parse(JspLexer.java:1015)
        at weblogic.servlet.jsp.JspParser.doit(JspParser.java:78)
        at weblogic.servlet.jsp.JspParser.parse(JspParser.java:181)
        at weblogic.servlet.jsp.Jsp2Java.outputs(Jsp2Java.java:119)
        at
weblogic.utils.compiler.CodeGenerator.generate(CodeGenerator.java:255)
        at weblogic.servlet.jsp.JspStub.compilePage(JspStub.java:327)
        at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:189)
        at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:154)
        at
weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:36
8)
        at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:24
2)
        at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:30
4)
        at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:20
0)
        at
weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
nte
xt.java:2456)
        at
weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
:20
39)
        at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
        at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
>
<01-Nov-01 11:39:13 GMT> <Info> <Management> <Configuration changes for
domain saved to th
e repository.>

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