Backward compatibility issue caused by recent fixes --------------------------------------------------- Key: JBMESSAGING-1958 URL: https://issues.jboss.org/browse/JBMESSAGING-1958 Project: JBoss Messaging Issue Type: Bug Components: JMS Remoting Affects Versions: 1.4.0.SP3.CP14, 1.4.8.SP11 Reporter: Yong Hao Gao Assignee: Yong Hao Gao Fix For: 1.4.0.SP3.CP15, 1.4.8.SP12 In the following Jiras: https://issues.jboss.org/browse/JBMESSAGING-1851 https://issues.jboss.org/browse/JBMESSAGING-1876 We've added three more fields in ClientConnectionFactoryDelegate private long maxRetryChangeRate; private long retryChangeRateInterval; private long minTimeoutProcessTime; This will cause backward compatibility issues when JBM server talks to old clients that are not aware of those changes. To those old clients the three fields are marshalled but never read by client. This will cause marshal problems as shown in the following example stack trace: 20:08:46,052 INFO [MicroSocketClientInvoker] SocketClientInvoker[47f6473, bisocket://127.0.0.2:4457] got exception java.io.IOException 20:08:46,054 ERROR [SocketClientInvoker] Got marshalling exception, exiting java.io.IOException at java.io.DataInputStream.readFully(DataInputStream.java:197) at java.io.DataInputStream.readUTF(DataInputStream.java:609) at java.io.DataInputStream.readUTF(DataInputStream.java:564) at org.jboss.messaging.util.Version.read(Version.java:251) at org.jboss.jms.client.delegate.ClientConnectionFactoryDelegate.read(ClientConnectionFactoryDelegate.java:348) at org.jboss.jms.delegate.TopologyResult.read(TopologyResult.java:123) at org.jboss.jms.wireformat.ConnectionFactoryGetTopologyResponse.read(ConnectionFactoryGetTopologyResponse.java:70) at org.jboss.jms.wireformat.JMSWireFormat.read(JMSWireFormat.java:303) at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.versionedRead(MicroSocketClientInvoker.java:917) at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:603) at org.jboss.remoting.transport.bisocket.BisocketClientInvoker.transport(BisocketClientInvoker.java:422) at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:141) at org.jboss.remoting.Client.invoke(Client.java:1858) at org.jboss.remoting.Client.invoke(Client.java:718) at org.jboss.jms.client.delegate.ClientClusteredConnectionFactoryDelegate.org$jboss$jms$client$delegate$ClientClusteredConnectionFactoryDelegate$getTopology$aop(ClientClusteredConnectionFactoryDelegate.java:326) at org.jboss.jms.client.delegate.ClientClusteredConnectionFactoryDelegate.getTopology(ClientClusteredConnectionFactoryDelegate.java) at org.jboss.jms.client.delegate.ClientClusteredConnectionFactoryDelegate.establishCallback(ClientClusteredConnectionFactoryDelegate.java:105) at org.jboss.jms.client.delegate.ClientClusteredConnectionFactoryDelegate.readObject(ClientClusteredConnectionFactoryDelegate.java:84) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371) at java.rmi.MarshalledObject.get(MarshalledObject.java:160) at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:72) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:737) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:654) at javax.naming.InitialContext.lookup(InitialContext.java:417) at org.jms.client.JMSClient.getFactory(JMSClient.java:147)