ValidWhen problem in struts 1.3.10

[vivek mahajan]

I wanna use validwhen for matching two password filed i.e. New Password and Retype New Password with following code

<field
                property="newPswd"
                depends="required,minlength">
                <arg position="0" key="loginForm.newPswd"/>
                <arg position="1" name="minlength" key="${var:minlength}" resource="false"/>
                <var>
                    <var-name>minlength</var-name>
                    <var-value>6</var-value>
                </var>
            </field>
            <field
                property="retypeNewPswd"
                depends="validwhen,required,minlength">
                <msg name="validwhen" key="loginForm.retypeNewPswd"/>
                <arg position="0" key="loginForm.retypeNewPswd"/>
                <arg position="1" name="minlength" key="${var:minlength}" resource="false"/>
                <var>
                    <var-name>test</var-name>
                    <var-value>(*this* == newPswd)</var-value>
                </var>
                <var>
                    <var-name>minlength</var-name>
                    <var-value>6</var-value>
                </var>
                
            </field>

but I am not getting any error message when they mismatch.