When i put ajax4jsf.jar into my WEB-INF/lib directory, it will throw the following exception. But if I remove it from WEB-INF directory, and put it into jboss deploy lib directory (default/lib), it works fine.

What's wrong with it? Any help are welcome!

ajax4jsf:1.1.0
richfaces:3.0.0
jboss:4.0.5
seam:1.1.6

2007-04-01 21:50:00,770 WARN [org.jboss.system.ServiceController] Problem starting service jboss.j2ee:service=EJB3,module=EvaluationProcess.jar

java.lang.NoClassDefFoundError: org/ajax4jsf/dnd/event/DropEvent

at java.lang.Class.getDeclaredMethods0(Native Method)

at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)

at java.lang.Class.getDeclaredMethods(Class.java:1791)

at org.jboss.injection.InjectionUtil.processMethodAnnotations(InjectionUtil.java:96)

at org.jboss.injection.InjectionUtil.processAnnotations(InjectionUtil.java:172)

at org.jboss.ejb3.EJBContainer.processMetadata(EJBContainer.java:270)

at org.jboss.ejb3.SessionContainer.processMetadata(SessionContainer.java:116)

at org.jboss.ejb3.Ejb3Deployment.processEJBContainerMetadata(Ejb3Deployment.java:273)

at org.jboss.ejb3.Ejb3Deployment.start(Ejb3Deployment.java:322)

at org.jboss.ejb3.Ejb3Module.startService(Ejb3Module.java:91)

at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)

at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)

at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)

at $Proxy0.start(Unknown Source)

at org.jboss.system.ServiceController.start(ServiceController.java:417)

at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)

at $Proxy28.start(Unknown Source)

at org.jboss.ejb3.EJB3Deployer.start(EJB3Deployer.java:449)

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:597)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)

at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)

at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)

at org.jboss.ws.integration.jboss.DeployerInterceptor.start(DeployerInterceptor.java:92)

at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)

at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)

at $Proxy29.start(Unknown Source)

at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)

at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1015)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)

at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)

at $Proxy8.deploy(Unknown Source)

at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)

at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)

at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)

at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)

at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)

at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)

at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)

at $Proxy0.start(Unknown Source)

at org.jboss.system.ServiceController.start(ServiceController.java:417)

at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)

at $Proxy4.start(Unknown Source)

at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)

at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)

at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:766)

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:597)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)

at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)

at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)

at $Proxy5.deploy(Unknown Source)

at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)

at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)

at org.jboss.Main.boot(Main.java:200)

at org.jboss.Main$1.run(Main.java:490)

at java.lang.Thread.run(Thread.java:619)