An Error In 4.0.2/4.0.3 caused by jsp taglib

when i use the version 4.0.2,4.0.3 source code(jdk7,win10).after ' ant openfire ' ,I use openfire.bat to start,

I see this error when running 'ant openfire '

after i read source code,i guess it caused by jsp file use the undefined taglib 'admin',so I add this code in web.xml

<jsp-config>

   <taglib>

   <taglib-uri>admin</taglib-uri>

   <taglib-location>/WEB-INF/admin.tld</taglib-location>

   </taglib>

</jsp-config>

it run well.