环境：Myeclipse 5.5 M2 Tomcat 6.0
配置文件：
struts-config.xml
...
<plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">
<set-property property="contextConfigLocation" value="/WEB-INF/applicationContext.xml" />
</plug-in>
</struts-config>
得到的异常：
严重: action: null
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from ServletContext resource [/WEB-INF/applicationContext.xml]; nested exception is java.lang.IllegalArgumentException: Class [org.springframework.jms.config.JmsNamespaceHandler] does not implement the NamespaceHandler interface
Caused by: java.lang.IllegalArgumentException: Class [org.springframework.jms.config.JmsNamespaceHandler] does not implement the NamespaceHandler interface
at org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver.initHandlerMappings(DefaultNamespaceHandlerResolver.java:119)
at org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver.<init>(DefaultNamespaceHandlerResolver.java:96)
at org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver.<init>(DefaultNamespaceHandlerResolver.java:82)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.createDefaultNamespaceHandlerResolver(XmlBeanDefinitionReader.java:526)
。。。
这是什么原因？
