Tomcat ClassNotFoundException change from 6 to 7

SEVERE: Begin event threw error
java.lang.NoClassDefFoundError: org.apache.catalina.mbeans.ServerLifecycleListener
   at java.lang.Class.initializeClass(libgcj.so.10)
   at java.lang.Class.newInstance(libgcj.so.10)
   at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:206)
   at org.apache.tomcat.util.digester.Rule.begin(Rule.java:153)
   at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1356)
   at gnu.xml.stream.SAXParser.parse(libgcj.so.10)
   at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1642)
   at org.apache.catalina.startup.Catalina.load(Catalina.java:524)
   at org.apache.catalina.startup.Catalina.load(Catalina.java:562)
   at java.lang.reflect.Method.invoke(libgcj.so.10)
   at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:261)
   at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.lang.ClassNotFoundException: javax.management.modelmbean.ModelMBeanNotificationBroadcaster not found in org.apache.catalina.loader.StandardClassLoader{urls=[file:/opt/apache-tomcat-6.0.35/lib/,file:/opt/apache-tomcat-6.0.35/lib/el-api.jar,file:/opt/apache-tomcat-6.0.35/lib/jasper-el.jar,file:/opt/apache-tomcat-6.0.35/lib/tomcat-i18n-fr.jar,file:/opt/apache-tomcat-6.0.35/lib/jsp-api.jar,file:/opt/apache-tomcat-6.0.35/lib/catalina.jar,file:/opt/apache-tomcat-6.0.35/lib/jasper.jar,file:/opt/apache-tomcat-6.0.35/lib/servlet-api.jar,file:/opt/apache-tomcat-6.0.35/lib/catalina-tribes.jar,file:/opt/apache-tomcat-6.0.35/lib/catalina-ha.jar,file:/opt/apache-tomcat-6.0.35/lib/tomcat-dbcp.jar,file:/opt/apache-tomcat-6.0.35/lib/tomcat-coyote.jar,file:/opt/apache-tomcat-6.0.35/lib/tomcat-i18n-ja.jar,file:/opt/apache-tomcat-6.0.35/lib/ecj-3.7.jar,file:/opt/apache-tomcat-6.0.35/lib/catalina-ant.jar,file:/opt/apache-tomcat-6.0.35/lib/tomcat-i18n-es.jar,file:/opt/apache-tomcat-6.0.35/lib/annotations-api.jar], parent=gnu.gcj.runtime.SystemClassLoader{urls=[file:/opt/apache-tomcat-6.0.35/bin/bootstrap.jar], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}}
   at java.net.URLClassLoader.findClass(libgcj.so.10)
   at java.lang.ClassLoader.loadClass(libgcj.so.10)
   at java.lang.ClassLoader.loadClass(libgcj.so.10)
   at java.lang.VMClassLoader.defineClass(libgcj.so.10)
   at java.lang.ClassLoader.defineClass(libgcj.so.10)
   at java.security.SecureClassLoa

tomcat 從6 移過來的配置放在了tomcat7上面啓動服務的時候報錯。

緣由是：7裏面沒有ServerLifecycleListener，解決方法是用原來的Tomcat7的server.xml。若是Tomcat上面有什麼特殊配置，從新配置在7裏面。

I have had same problem. In my case I was migrating from tomcat6 -> tomcat7 and I left my application configured in same way from tomcat6 and just try to start it in tomcat7. But in tomcat7 default server.xml configuration there is not server lifecycle listener used (<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />). Consider reconfiguration of application that you want to migrate for tomcat7 (preffered way I think). Or just remove server lifecycle listener from server.xml in this case.