Struts validation with minlength

[Rabee' Nawash]

Dear All,

I'm facing a struts validation problem with minlength, the validation alert message will be like this

customer name cann't be less than null characters, I check everything in the validation.xml everything are defined correctly

<field property="beneficiary.account.number" depends="required,maxlength, minlength, integer">
<arg0 key="label.transfers.BeneficiaryAccountNumber" />
<arg1 key="${var:maxlength}" name="maxlength" resource="false" />
<arg2 key="${var:minlength}" name="minlength" resource="false" />
<var>
<var-name>maxlength</var-name>
<var-value>13</var-value>
</var>
<var>
<var-name>minlength</var-name>
<var-value>13</var-value>
</var>
</field>