Hello, I have a really weird problem which happens only sometimes (that's the worst kind of problems) and in different ways. The only thing the symptoms have in common is ClassDefNotFoundException.
So, I have a standard seam app, generated with seam-gen, with only one exception: I have a separate .jar with interfaces and model classes which is deployed parallerly to the .ear (I separated the interfaces and model classes so I can access the ejb services from other apps). It work fine until recently, however I have no idea when exactly the problem started to appear (as it appears sometimes, it's hard to find the cause ...). I noticed that the errors appear more often if a method is called on regular intervals of time, beginning with the "org.jboss.seam.postInitialization" event (I use the quartz scheduler). So the error is one of the following: - java.lang.NoClassDefFoundError: org/jboss/seam/Instance - java.lang.NoClassDefFoundError: org/jboss/seam/interceptor/Proxy - java.lang.NoClassDefFoundError: <my model class> - java.lang.NoClassDefFoundError: <my helper model class>; this exception is thrown during deserialization of that class; instances of it are held serialized in the DB. Here is the stack trace for the first example: | 19:55:49,230 INFO [Initialization] done initializing Seam | 19:55:49,264 ERROR [JobRunShell] Job DEFAULT.-4531f942:1175fe7c870:-7ffd threw an unhandled Exception: | javax.ejb.EJBException: org.jboss.seam.InstantiationException: Could not instantiate Seam component: feedsService | at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:63) | at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83) | at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) | at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:214) | at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:184) | at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:81) | at $Proxy170.update(Unknown Source) | 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.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31) | at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) | at org.jboss.seam.async.AsynchronousInterceptor.aroundInvoke(AsynchronousInterceptor.java:50) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106) | at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54) | at org.javassist.tmp.java.lang.Object_$$_javassist_3.update(Object_$$_javassist_3.java) | 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.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.async.AsynchronousInvocation.call(AsynchronousInvocation.java:52) | at org.jboss.seam.async.Asynchronous.executeInContexts(Asynchronous.java:76) | at org.jboss.seam.async.Asynchronous.execute(Asynchronous.java:45) | at org.jboss.seam.async.QuartzDispatcher$QuartzJob.execute(QuartzDispatcher.java:304) | at org.quartz.core.JobRunShell.run(JobRunShell.java:203) | at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520) | Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: feedsService | at org.jboss.seam.Component.newInstance(Component.java:1962) | at org.jboss.seam.Component.getInstance(Component.java:1865) | at org.jboss.seam.Component.getInstance(Component.java:1832) | at org.jboss.seam.Component.getInstanceInAllNamespaces(Component.java:2174) | at org.jboss.seam.Component.getValueToInject(Component.java:2126) | at org.jboss.seam.Component.injectAttributes(Component.java:1590) | at org.jboss.seam.Component.inject(Component.java:1408) | at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:45) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.persistence.EntityManagerProxyInterceptor.aroundInvoke(EntityManagerProxyInterceptor.java:26) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.persistence.HibernateSessionProxyInterceptor.aroundInvoke(HibernateSessionProxyInterceptor.java:27) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106) | at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50) | 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.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118) | at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) | ... 42 more | Caused by: java.lang.RuntimeException: by java.lang.NoClassDefFoundError: org/jboss/seam/Instance | at org.jboss.seam.util.ProxyFactory.createClass(ProxyFactory.java:190) | at org.jboss.seam.Component.createProxyFactory(Component.java:2252) | at org.jboss.seam.Component.getProxyFactory(Component.java:1367) | at org.jboss.seam.Component.wrap(Component.java:1358) | at org.jboss.seam.Component.instantiateSessionBean(Component.java:1280) | at org.jboss.seam.Component.instantiate(Component.java:1265) | at org.jboss.seam.Component.newInstance(Component.java:1958) | ... 70 more | Caused by: javassist.CannotCompileException: by java.lang.NoClassDefFoundError: org/jboss/seam/Instance | at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:165) | at org.jboss.seam.util.ProxyFactory.createClass(ProxyFactory.java:186) | ... 76 more | Caused by: java.lang.NoClassDefFoundError: org/jboss/seam/Instance | at java.lang.ClassLoader.defineClass1(Native Method) | at java.lang.ClassLoader.defineClass(ClassLoader.java:620) | at sun.reflect.GeneratedMethodAccessor106.invoke(Unknown Source) | 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:177) | at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:159) | ... 77 more | (here you can see the quartz schduler at work, but it also happens when this is turned off, and looks very similar). Anybody has any ideas, where at least I can start looking? -- Adam View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4118414#4118414 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4118414 _______________________________________________ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user