Dublikāta klases definīcijas kļūda

Vai kāds var palīdzēt to atrisināt?

15:02:06,698 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.LinkageError: loader (instance of  org/apache/jasper/servlet/JasperLoader): attempted  duplicate class definition for name: "org/apache/jsp/tag/web/divBox_tag"

[geronimo 2.1, struts 1.2]