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https://issues.apache.org/jira/browse/DIRMINA-930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14122869#comment-14122869
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Emmanuel Lecharny commented on DIRMINA-930:
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It's quite clear : serializing an instance using Java 6 won't be deserialized
by a Java 7 server (and it fails both ways).
Here, I would suggest not to use the ObjectSerializationCodecFactory which is
clearly Java version dependent, but instead write your own encoder/decoder.
For MINA 3.0, we have to implement an Java independent serialization mechanism.
> Problems with ObjectSerializationCodecFactory using MINA in between Java 6
> and Java 7
> -------------------------------------------------------------------------------------
>
> Key: DIRMINA-930
> URL: https://issues.apache.org/jira/browse/DIRMINA-930
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0.7
> Environment: Windows 7, Java 7, Java 6
> Reporter: Marco Waimer
> Priority: Critical
> Fix For: 3.0.0-trunk
>
> Attachments: MinaClient.java, MinaServer.java, Server6Client7.txt,
> Server7Client6.txt
>
>
> We use mina with the
> org.apache.mina.filter.codec.serialization.ObjectSerializationCodecFactory
> for our communication framework. Using Java 7 on one side (i.e. server) and
> Java 6 on the other side (i.e. client) leads to problems with the
> deserialisation, in our case with a java.util.Locale object, which has
> additional fields in Java 7. See attached stack traces.
> We tracked the problem to
> org.apache.mina.core.buffer.AbstractIoBuffer.putObject(Object) and
> org.apache.mina.core.buffer.AbstractIoBuffer.getObject(ClassLoader), since
> this part is overriding java serialisation and omitting some class
> information, which will be needed for the deserialisation.
> Using the attached example the stack traces could easily be reproduced,
> running one part with Java 7 and the other with Java 6. The MinaServer will
> simply open a port and the MinaClient will send a java.util.Locale object to
> that port.
> In MINA 1.1.7 ObjectOutputStream and ObjectInputStream were used without
> overriding writeClassDescriptor/readClassDescriptor, therefore the problem
> does not exist there.
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