While developing a test for my work on JBAS-5822, stumbled on a problem with serialization of DeploymentUnit. My test was based on org.jboss.test.deployers.AbstractDeploymentTest, and called its assertDeployed() method, which ends up using an MBeanServerConnection to invoke the "getDeploymentUnit" operation on the server-side MainDeployer. That call fails in marshalling the DeploymentUnit: | java.io.NotSerializableException: org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1081) | at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375) | at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347) | at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) | at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375) | at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347) | at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) | at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) | at java.util.ArrayList.writeObject(ArrayList.java:569) | at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917) | at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339) | at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) | at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375) | at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347) | at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) | at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) | at java.util.concurrent.ConcurrentHashMap.writeObject(ConcurrentHashMap.java:1380) | at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917) | at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339) | at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) | at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375) | at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347) | at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) | at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) | at org.jboss.deployers.plugins.attachments.AttachmentsImpl.writeExternal(AttachmentsImpl.java:145) | at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1310) | at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1288) | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) | at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) | at org.jboss.deployers.spi.attachments.helpers.ManagedObjectAttachmentsImpl.writeExternal(ManagedObjectAttachmentsImpl.java:65) | at org.jboss.deployers.spi.attachments.helpers.ManagedObjectsWithTransientAttachmentsImpl.writeExternal(ManagedObjectsWithTransientAttachmentsImpl.java:70) | at org.jboss.deployers.structure.spi.helpers.AbstractDeploymentContext.writeExternal(AbstractDeploymentContext.java:836) | at org.jboss.deployers.vfs.plugins.structure.AbstractVFSDeploymentContext.writeExternal(AbstractVFSDeploymentContext.java:406) | at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1310) | at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1288) | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) | at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) | at org.jboss.deployers.structure.spi.helpers.AbstractDeploymentUnit.writeExternal(AbstractDeploymentUnit.java:509) | at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1310) | at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1288) | at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) | at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) | at java.rmi.MarshalledObject.<init>(MarshalledObject.java:92) | at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:420) | at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294) | at sun.rmi.transport.Transport$1.run(Transport.java:153) | at java.security.AccessController.doPrivileged(Native Method) | at sun.rmi.transport.Transport.serviceCall(Transport.java:149) | at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:466) | at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:707) | at java.lang.Thread.run(Thread.java:595) | at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247) | at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223) | at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126) | at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source) | at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:133) | at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java:244) | at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:181) | at org.jboss.jmx.connector.invoker.client.InvokerAdaptorClientInterceptor.invoke(InvokerAdaptorClientInterceptor.java:66) | at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:87) | at org.jboss.proxy.ClientMethodInterceptor.invoke(ClientMethodInterceptor.java:74) | at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:101) | at $Proxy1.invoke(Unknown Source) | at org.jboss.test.deployers.AbstractDeploymentTest.invokeMainDeployer(AbstractDeploymentTest.java:83) | at org.jboss.test.deployers.AbstractDeploymentTest.getDeploymentUnit(AbstractDeploymentTest.java:114) | at org.jboss.test.deployers.AbstractDeploymentTest.assertDeployed(AbstractDeploymentTest.java:89) | at org.jboss.test.deployers.AbstractDeploymentTest.assertDeployed(AbstractDeploymentTest.java:96) | at org.jboss.test.deployers.valuefactory.test.ValueFactoryInjectionUnitTestCase.testValueFactoryInjection(ValueFactoryInjectionUnitTestCase.java:60) | at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24) | at junit.extensions.TestSetup$1.protect(TestSetup.java:21) | at junit.extensions.TestSetup.run(TestSetup.java:25) The structure of the deployment: xxx.sar ++ META-INF ++++ jboss-beans.xml ++ valuefactory-service.xml ++ org (classes) This isn't holding up my JBAS-5822 work; I don't need to invoke assertDeployed() in my test since I later invoke on the deployed mbeans anyway. 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