It is an error to define a form-property
without a type
type attribute.
Struts requires <form-property>
tags to include a type
attribute. Struts will throw an exception when processing a form that defines a form-property
with no type.
Example 1: The following configuration omits a type for the name
property.
<form-bean name="loginForm" type="org.apache.struts.validator.DynaValidatorForm">
<form-property name="name" />
<form-property name="password" type="java.lang.String" />
</form-bean>
[1] Apache Struts 1.3 Specification