ConversationScope
Hi there,
I've just downloaded weld 1.0 CR1 and, after running the numberguess example on Tomcat (6.0.20), I tried to use a conversation scope (nothing serious, just anxious to see it working...) on it.
@ConversationScoped
public class Bean implements Serializable {
private Long id;
// setters and getters
}Game.java:
@Inject private Bean currentBean; @Inject private Conversation conversation;
However, when I tried to mark the conversation as long running in the reset method of the Game, I got this error and my page couldn't be rendered -- I'm sorry for this long stacktrace:
java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) 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:585) at javassist.util.proxy.FactoryHelper.toClass2(FactoryHelper.java:181) at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:163) at javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:339) at javassist.util.proxy.ProxyFactory.createClass2(ProxyFactory.java:314) at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:273) at org.jboss.weld.bean.proxy.ClientProxyProvider.createClientProxy(ClientProxyProvider.java:84) at org.jboss.weld.bean.proxy.ClientProxyProvider.access$000(ClientProxyProvider.java:41) at org.jboss.weld.bean.proxy.ClientProxyProvider$1.call(ClientProxyProvider.java:122) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269) at java.util.concurrent.FutureTask.run(FutureTask.java:123) at org.jboss.weld.util.collections.ConcurrentCache.putIfAbsent(ConcurrentCache.java:125) at org.jboss.weld.bean.proxy.ClientProxyProvider.getClientProxy(ClientProxyProvider.java:112) at org.jboss.weld.BeanManagerImpl.getReference(BeanManagerImpl.java:890) at org.jboss.weld.BeanManagerImpl.getReference(BeanManagerImpl.java:910) at org.jboss.weld.bean.builtin.facade.InstanceImpl.get(InstanceImpl.java:68) at org.jboss.weld.bean.builtin.facade.InstanceImpl.get(InstanceImpl.java:74) at org.jboss.weld.conversation.ServletConversationManager.getBeanStore(ServletConversationManager.java:60) at org.jboss.weld.conversation.AbstractConversationManager.cleanupConversation(AbstractConversationManager.java:150) 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:585) at org.jboss.weld.bean.proxy.ClientProxyMethodHandler.invoke(ClientProxyMethodHandler.java:111) at org.jboss.weld.conversation.ServletConversationManager_$$_javassist_1.cleanupConversation(ServletConversationManager_$$_javassist_1.java) at org.jboss.weld.jsf.WeldPhaseListener.afterRenderResponse(WeldPhaseListener.java:128) at org.jboss.weld.jsf.WeldPhaseListener.afterPhase(WeldPhaseListener.java:99) at com.sun.faces.lifecycle.Phase.handleAfterPhase(Phase.java:179) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:103) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:311) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) at java.lang.Thread.run(Thread.java:595)
Debugging with Eclipse, I noticed that when the ServletConversationManager tries to get the beanStore for a conversation, it makes a call to httpSession.get(), trying to create a proxy for the session. Digging further, the ProxyFactory ends up resolving the classLoader to an instance of org.apache.catalina.loader.StandardClassLoader (which, clearly, doesn't know the javassist lib).
Now I wonder if I misread something or I'm doing something really stupid. While debugging I changed the loader to the Thread.currentThread().getContextClassLoader() and things worked quite nicely.
Is this a bug or am I doing something wrong in my app configuration?
Thanks for your attention (for quite a long running topic :D)
