We're currently using JBoss 4.0.4 but we want to migrate to JBoss 5. We know, the 5 is still beta but we want to do some tests anyway. We think we modified the necessary config files, for datasources, JMS, ... but our EJBs won't deploy. We're getting a ClassCastException because of org.jboss.metadata.ejb.spec.EjbJar20MetaData. Any idea what might be wrong? Are there docs yet about the migration from 4.0 to 5.0? Thanks, Nick. Stacktrace:anonymous wrote : [...] | 2008-01-17 13:41:52,523 DEBUG [org.jboss.ejb.deployers.MergedJBossMetaDataDeployer] Error during deploy: vfsfile:/C:/java/jboss-5.0.0.Beta3/server/nokeos-production/deploy/0-nokeoscore-server.jar | java.lang.ClassCastException: org.jboss.metadata.ejb.spec.EjbJar20MetaData | at org.jboss.ejb.deployers.MergedJBossMetaDataDeployer.deploy(MergedJBossMetaDataDeployer.java:79) | at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:169) | at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:853) | at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:794) | at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:327) | at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1309) | at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:734) | at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:862) | at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:784) | at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:622) | at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:411) | at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:498) | at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:506) | at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:290) | at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:221) | at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417) | at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:280) | at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:135) | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:65) | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:142) | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:166) | at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650) | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675) | at java.lang.Thread.run(Thread.java:595) | 2008-01-17 13:41:52,539 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] Error installing to PostClassLoader: name=vfsfile:/C:/java/jboss-5.0.0.Beta3/server/nokeos-production/deploy/0-nokeoscore-server.jar state=ClassLoader mode=Manual requiredState=PostClassLoader | org.jboss.deployers.spi.DeploymentException: Error during deploy: vfsfile:/C:/java/jboss-5.0.0.Beta3/server/nokeos-production/deploy/0-nokeoscore-server.jar | at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49) | at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:175) | at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:853) | at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:794) | at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:327) | at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1309) | at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:734) | at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:862) | at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:784) | at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:622) | at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:411) | at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:498) | at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:506) | at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:290) | at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:221) | at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417) | at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:280) | at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:135) | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:65) | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:142) | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:166) | at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650) | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675) | at java.lang.Thread.run(Thread.java:595) | Caused by: java.lang.ClassCastException: org.jboss.metadata.ejb.spec.EjbJar20MetaData | at org.jboss.ejb.deployers.MergedJBossMetaDataDeployer.deploy(MergedJBossMetaDataDeployer.java:79) | at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:169) | ... 22 more | 2008-01-17 13:41:52,648 DEBUG [org.jboss.mx.loading.UnifiedLoaderRepository3] UnifiedLoaderRepository removed(true) org.jboss.mx.loading.UnifiedClassLoader3@1ba9aca{ url=vfsfile:/C:/java/jboss-5.0.0.Beta3/server/nokeos-production/deploy/0-nokeoscore-server.jar ,addedOrder=50} | 2008-01-17 13:41:52,648 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] Unregistering cl=org.jboss.mx.loading.UnifiedClassLoader3@1ba9aca{ url=vfsfile:/C:/java/jboss-5.0.0.Beta3/server/nokeos-production/deploy/0-nokeoscore-server.jar ,addedOrder=50} | 2008-01-17 13:41:52,648 DEBUG [org.jboss.mx.loading.UnifiedLoaderRepository3] UnifiedLoaderRepository removed(false) org.jboss.mx.loading.UnifiedClassLoader3@1ba9aca{ url=vfsfile:/C:/java/jboss-5.0.0.Beta3/server/nokeos-production/deploy/0-nokeoscore-server.jar ,addedOrder=50} | 2008-01-17 13:41:52,648 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] Added url: file:/C:/java/jboss-5.0.0.Beta3/server/nokeos-production/tmp/aopdynclasses/ucl10087/?dynamic=true, to ucl: org.jboss.mx.loading.UnifiedClassLoader3@1fbdf57{ url=vfsfile:/C:/java/jboss-5.0.0.Beta3/server/nokeos-production/deploy/z-rules-engine-server.jar 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