Multibox Question

[SUHAS G. KULKARNI]

The below  code works - 
      <html:multibox property="stringMultibox">
        String 0
      </html:multibox>

But if  I write      <html:multibox property="stringMultibox" /> does not
work 
I get javax.servlet.ServletException: You must specify the value attribute
or nested tag content

I checked the struts-html.tld file for the syntax which shows "property" is
the only required attribute  . Then why is it asked for another attribute
called "value "

Let me know where I'm doing mistake ?

Thanks
Suhas