Struts 2.1.8 + Jfree Chart + tomcat 6 + jdk 1.5.0

[selvaraju sellamuthu]

I am trying to use jfree chart with struts 2 to display pie chart in our applciation. I followed the struts 2.x plugin document. below is the key link which i used.
struts 2.x-jfreechart plugin

When i start tomcat, i am getting this below error logs... appreciate your help.

  

SEVERE: Exception starting filter struts2
Unable to load configuration. - Class: gnu.xml.dom.DomElement
File: DomElement.java
Method: setAttributeNS
Line: 249 - gnu/xml/dom/DomElement.java:249:-1
	at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:431)
	at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
	at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3800)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4450)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:526)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:987)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:909)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:495)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:516)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:592)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: Unable to load configuration. - Class: gnu.xml.dom.DomElement
File: DomElement.java
Method: setAttributeNS
Line: 249 - gnu/xml/dom/DomElement.java:249:-1
	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58)
	at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374)
	at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418)
	... 28 more
Caused by: Unable to load jar:file:/C:/jakartatomcat60/webapps/elogrfconsole/WEB-INF/lib/struts2-core-2.1.8.jar!/struts-default.xml - Class: gnu.xml.dom.DomElement
File: DomElement.java
Method: setAttributeNS
Line: 249 - gnu/xml/dom/DomElement.java:249:-1
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:898)
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments(XmlConfigurationProvider.java:143)
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init(XmlConfigurationProvider.java:110)
	at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:168)
	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
	... 30 more
Caused by: The operation violates XML Namespaces.
More Information: setting xmlns attribute to illegal value
Node Name: struts - Class: gnu.xml.dom.DomElement
File: DomElement.java
Method: setAttributeNS
Line: 249 - gnu/xml/dom/DomElement.java:249:-1
	at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:115)
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:893)
	... 34 more
Caused by: gnu.xml.dom.DomEx: The operation violates XML Namespaces.
More Information: setting xmlns attribute to illegal value
Node Name: struts
	at gnu.xml.dom.DomElement.setAttributeNS(DomElement.java:249)
	at com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.startElement(SAX2DOM.java:120)
	at com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.closeStartTag(ToXMLSAXHandler.java:205)
	at com.sun.org.apache.xml.internal.serializer.ToSAXHandler.flushPending(ToSAXHandler.java:291)
	at com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.startElement(ToXMLSAXHandler.java:646)
	at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerHandlerImpl.startElement(TransformerHandlerImpl.java:263)
	at com.opensymphony.xwork2.util.DomHelper$DOMBuilder.startElement(DomHelper.java:237)
	at com.opensymphony.xwork2.util.location.LocationAttributes$Pipe.startElement(LocationAttributes.java:317)
	at com.opensymphony.xwork2.util.DomHelper$StartHandler.startElement(DomHelper.java:300)
	at gnu.xml.pipeline.EventFilter.startElement(EventFilter.java:570)
	at gnu.xml.pipeline.ValidationConsumer.startElement(ValidationConsumer.java:1177)
	at gnu.xml.aelfred2.SAXDriver.startElement(SAXDriver.java:834)
	at gnu.xml.aelfred2.XmlParser.parseElement(XmlParser.java:1042)
	at gnu.xml.aelfred2.XmlParser.parseContent(XmlParser.java:1207)
	at gnu.xml.aelfred2.XmlParser.parseElement(XmlParser.java:1038)
	at gnu.xml.aelfred2.XmlParser.parseDocument(XmlParser.java:416)
	at gnu.xml.aelfred2.XmlParser.doParse(XmlParser.java:167)
	at gnu.xml.aelfred2.SAXDriver.parse(SAXDriver.java:320)
	at gnu.xml.aelfred2.XmlReader.parse(XmlReader.java:294)
	at javax.xml.parsers.SAXParser.parse(SAXParser.java:375)
	at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:113)
	... 35 more

if i remove jfree chart libraries, then tomcat starts well,

Thanks and Regards
Selva