hai ragione...riporto la console...appena lancio

codice:
INFO: Starting Servlet Engine: Apache Tomcat/6.0.18
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.lang.IllegalArgumentException: dom4j-core,jdom,xml-apis,xerces,junit-Extension-Name
	at java.util.jar.Attributes$Name.<init>(Unknown Source)
	at java.util.jar.Attributes.getValue(Unknown Source)
	at org.apache.catalina.util.ManifestResource.getRequiredExtensions(ManifestResource.java:186)
	at org.apache.catalina.util.ManifestResource.processManifest(ManifestResource.java:155)
	at org.apache.catalina.util.ManifestResource.<init>(ManifestResource.java:52)
	at org.apache.catalina.util.ExtensionValidator.validateApplication(ExtensionValidator.java:186)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4167)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
	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:578)
	... 6 more