Org/apache/xml/serializer/treewalker Error Answer

A recent web development, the use of the Struts2 spring2.5 hibernate3.3 project has been developed, and later need to use WebService,  Added the axis1.4 up, in the absence of adding webservice, the program compiles without errors, then inexplicably wrong, appear org/apache/xml/serializer/treewalker  Said on the Internet is Xalan-2.7.1.jar package did not add, later found that added Xalan-2.7.1.jar or errors, and finally feel that should not add a complete package, it checked a org/apache/xml/serializer/treewalker The Serializer-2.7.1.jar is OK.

Serializer-2.7.1.jar's download Address: Http://mirrors.ibiblio.org/pub/mirrors/maven2/xalan/serializer/2.7.1/serializer-2.7.1.jar