Problem running examples from Seam 2.0.0 Beta on Tomcat

[statelessbean]

When I run compiled examples "ant deploy.tomcat", into tomcat my webapps, I get:

SEVERE: Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener
java.lang.NoClassDefFoundError: javassist/bytecode/ClassFile
at org.jboss.seam.deployment.Scanner.<init>(Scanner.java:51)
at org.jboss.seam.deployment.Scanner.<init>(Scanner.java:44)
at org.jboss.seam.deployment.NamespaceScanner.<init>(NamespaceScanner.java:24)
at org.jboss.seam.init.Initialization.addNamespaces(Initialization.java:732)
at org.jboss.seam.init.Initialization.create(Initialization.java:83)
at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:34)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3764)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:825)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:714)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:490)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
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:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
2007-08-02 19:39:28 org.apache.catalina.core.StandardContext start

any ideas?

[michael.yuan]

You need to install Embeddable JBoss on Tomcat to run most examples. The only examples that work out of the box on plain Tomcat are "jpa" and "hibernate2". see more here:

http://www.michaelyuan.com/blog/2007/07/24/seam-20-and-tomcat/