IncompatibleClassChangeError

I use JBoss 4.0.4-GA. After deploy my application and start the JBoss server, I have the following error.

Any advices?

Thanks in advance.

java.lang.IncompatibleClassChangeError
at org.apache.cocoon.components.resolver.ResolverImpl.parameterize(ResolverImpl.java:133)
at org.apache.avalon.excalibur.component.DefaultComponentFactory.newInstance(DefaultComponentFactory.java:190)
at org.apache.avalon.excalibur.component.ThreadSafeComponentHandler.initialize(ThreadSafeComponentHandler.java:98)
at org.apache.avalon.excalibur.component.ExcaliburComponentManager.lookup(ExcaliburComponentManager.java:380)
at org.apache.cocoon.components.CocoonComponentManager.lookup(CocoonComponentManager.java:167)
at org.apache.avalon.excalibur.component.DefaultComponentFactory$ComponentManagerProxy.lookup(DefaultComponentFactory.java:314)
at org.apache.avalon.excalibur.xml.JaxpParser.compose(JaxpParser.java:120)
at org.apache.avalon.excalibur.component.DefaultComponentFactory.newInstance(DefaultComponentFactory.java:170)
at org.apache.avalon.excalibur.pool.ResourceLimitingPool.newPoolable(ResourceLimitingPool.java:629)
at org.apache.avalon.excalibur.pool.ResourceLimitingPool.get(ResourceLimitingPool.java:359)
at org.apache.avalon.excalibur.component.PoolableComponentHandler.doGet(PoolableComponentHandler.java:186)
at org.apache.avalon.excalibur.component.ComponentHandler.get(ComponentHandler.java:139)
at org.apache.avalon.excalibur.component.ExcaliburComponentManager.lookup(ExcaliburComponentManager.java:374)
at org.apache.cocoon.components.CocoonComponentManager.lookup(CocoonComponentManager.java:167)
at org.apache.avalon.excalibur.component.DefaultComponentFactory$ComponentManagerProxy.lookup(DefaultComponentFactory.java:314)
at org.apache.cocoon.components.source.AbstractStreamSource.toSAX(AbstractStreamSource.java:204)
at org.apache.cocoon.components.treeprocessor.TreeProcessor.configure(TreeProcessor.java:245)
at org.apache.avalon.excalibur.component.DefaultComponentFactory.newInstance(DefaultComponentFactory.java:185)
at org.apache.avalon.excalibur.component.ThreadSafeComponentHandler.initialize(ThreadSafeComponentHandler.java:98)
at org.apache.avalon.excalibur.component.ExcaliburComponentManager.initialize(ExcaliburComponentManager.java:158)
at org.apache.cocoon.Cocoon.initialize(Cocoon.java:270)
at org.apache.cocoon.servlet.CocoonServlet.createCocoon(CocoonServlet.java:1237)
at org.apache.cocoon.servlet.CocoonServlet.init(CocoonServlet.java:435)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)