Also, if I try to do a Twiddle thread-dump while in the failed state I get the following errors: [root@box bin]# sh twiddle.sh invoke "jboss.system:type=ServerInfo" listThreadDump 08:58:12,403 ERROR [Twiddle] Exec failed org.jboss.util.NestedRuntimeException: - nested throwable: (javax.naming.CommunicationException [Root exception is java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: java.io.EOFException]) at org.jboss.console.twiddle.Twiddle$1.getServer(Twiddle.java:137) at org.jboss.console.twiddle.command.MBeanServerCommand.getMBeanServer(MBeanServerCommand.java:47) at org.jboss.console.twiddle.command.MBeanServerCommand.queryMBeans(MBeanServerCommand.java:54) at org.jboss.console.twiddle.command.InvokeCommand.execute(InvokeCommand.java:262) at org.jboss.console.twiddle.Twiddle.main(Twiddle.java:293) Caused by: javax.naming.CommunicationException [Root exception is java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: java.io.EOFException] at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:707) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:572) at javax.naming.InitialContext.lookup(InitialContext.java:351) at org.jboss.console.twiddle.Twiddle.createMBeanServerConnection(Twiddle.java:244) at org.jboss.console.twiddle.Twiddle.connect(Twiddle.java:262) at org.jboss.console.twiddle.Twiddle.access$300(Twiddle.java:56) at org.jboss.console.twiddle.Twiddle$1.getServer(Twiddle.java:133) ... 4 more Caused by: java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: java.io.EOFException at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:203) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126) at org.jnp.server.NamingServer_Stub.lookup(Unknown Source) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:610) ... 10 more Caused by: java.io.EOFException at java.io.DataInputStream.readByte(DataInputStream.java:243) at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:189) ... 13 more View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3990996#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...