[jira] Commented: (TUSCANY-1084) Java Serialization: The Type definition is overwritten in the registry within the same scope

["Frank Budinsky (JIRA)" <tu...@ws.apache.org>]

    [ https://issues.apache.org/jira/browse/TUSCANY-1084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12469188 ] 

Frank Budinsky commented on TUSCANY-1084:
-----------------------------------------

It seems like the problem is because you're passing the metadata in the DataGraph - i.e., you called SDOUtil.registerDataGraphTypes(). If you don't do that, does it work? If you pass the metadata, it would seem that you are asking it to replace it with the new version.

Frank.

> Java Serialization: The Type definition is overwritten in the registry within the same scope
> --------------------------------------------------------------------------------------------
>
>                 Key: TUSCANY-1084
>                 URL: https://issues.apache.org/jira/browse/TUSCANY-1084
>             Project: Tuscany
>          Issue Type: Bug
>          Components: Java SDO Implementation
>    Affects Versions: Java-M2
>         Environment: All
>            Reporter: Hasan Muhammad
>             Fix For: Java-M2
>
>         Attachments: JavaSerializeDeserializeTestCase.java
>
>
> When a DataObject is serialized using the java serialization ( ObjectOutputStream.writeObject) and deserialized back using ObjectInputStream.readObject, the types of the two dataobjects do not match, even though this all in the same scope ( global in this case ).
> During deserialization, it seems that the type of the dataobject cannot be found, and it is creating the type again and simply overwrites the previously registered type. This results in the dataobjects getting different types and the test case fails. 
> There is another issue here, which is that currently there seems to be no way to provide a scope when using these java serialization methods. For instance, when using XMLHelper, you can get a scope defined XMLHelper. But how do you do this when you are using the java serialization methods ? If you want me to open another Jira for this i will.
> Hasan

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