java - Spring security : @Secured : Error Add CGLIB to the class path or specify proxy interfaces -

i hope can me issue:

i use spring security (3.1.0.release.jar)

security configuration:

<security:global-method-security secured-annotations="enabled"/> 

when add @secured('role_admin') controller error appear

 grave: exception lors de l'envoi de l'évènement contexte initialisé (context initialized) à l'instance de classe d'écoute (listener) org.springframework.web.context.contextloaderlistener org.springframework.beans.factory.beancreationexception: error creating bean name 'services_controller' defined in file [d:\workspaceeclipsejee\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\myapp\web-inf\classes\com\pfe\controller\services_controller.class]: initialization of bean failed; nested exception org.springframework.aop.framework.aopconfigexception: cannot proxy target class because cglib2 not available. add cglib class path or specify proxy interfaces.     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.docreatebean(abstractautowirecapablebeanfactory.java:527)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.createbean(abstractautowirecapablebeanfactory.java:456)     @ org.springframework.beans.factory.support.abstractbeanfactory$1.getobject(abstractbeanfactory.java:294)     @ org.springframework.beans.factory.support.defaultsingletonbeanregistry.getsingleton(defaultsingletonbeanregistry.java:225)     @ org.springframework.beans.factory.support.abstractbeanfactory.dogetbean(abstractbeanfactory.java:291)     @ org.springframework.beans.factory.support.abstractbeanfactory.getbean(abstractbeanfactory.java:193)     @ org.springframework.beans.factory.support.defaultlistablebeanfactory.preinstantiatesingletons(defaultlistablebeanfactory.java:585)     @ org.springframework.context.support.abstractapplicationcontext.finishbeanfactoryinitialization(abstractapplicationcontext.java:913)     @ org.springframework.context.support.abstractapplicationcontext.refresh(abstractapplicationcontext.java:464)     @ org.springframework.web.context.contextloader.configureandrefreshwebapplicationcontext(contextloader.java:384)     @ org.springframework.web.context.contextloader.initwebapplicationcontext(contextloader.java:283)     @ org.springframework.web.context.contextloaderlistener.contextinitialized(contextloaderlistener.java:111)     @ org.apache.catalina.core.standardcontext.listenerstart(standardcontext.java:5016)     @ org.apache.catalina.core.standardcontext.startinternal(standardcontext.java:5528)     @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:150)     @ org.apache.catalina.core.containerbase$startchild.call(containerbase.java:1575)     @ org.apache.catalina.core.containerbase$startchild.call(containerbase.java:1565)     @ java.util.concurrent.futuretask.run(unknown source)     @ java.util.concurrent.threadpoolexecutor.runworker(unknown source)     @ java.util.concurrent.threadpoolexecutor$worker.run(unknown source)     @ java.lang.thread.run(unknown source) caused by: org.springframework.aop.framework.aopconfigexception: cannot proxy target class because cglib2 not available. add cglib class path or specify proxy interfaces.     @ org.springframework.aop.framework.defaultaopproxyfactory.createaopproxy(defaultaopproxyfactory.java:67)     @ org.springframework.aop.framework.proxycreatorsupport.createaopproxy(proxycreatorsupport.java:104)     @ org.springframework.aop.framework.proxyfactory.getproxy(proxyfactory.java:112)     @ org.springframework.aop.framework.autoproxy.abstractautoproxycreator.createproxy(abstractautoproxycreator.java:476)     @ org.springframework.aop.framework.autoproxy.abstractautoproxycreator.wrapifnecessary(abstractautoproxycreator.java:362)     @ org.springframework.aop.framework.autoproxy.abstractautoproxycreator.postprocessafterinitialization(abstractautoproxycreator.java:322)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.applybeanpostprocessorsafterinitialization(abstractautowirecapablebeanfactory.java:407)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.initializebean(abstractautowirecapablebeanfactory.java:1461)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.docreatebean(abstractautowirecapablebeanfactory.java:519)     ... 20 more 

i made these changes

1: <security:global-method-security pre-post-annotations="enabled"/>

2: put in appservlet-servlet.xml

3: added cglib-nodep-3.1.jar lib

4: use @preauthorize("hasrole('role_admin')") instead of @secured