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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6128) Examine Derby classes to determine if we need to add serialVersionUID to any of them
Date Thu, 18 Apr 2013 07:21:23 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13634932#comment-13634932
] 

Dag H. Wanvik commented on DERBY-6128:
--------------------------------------

Committed as svn 1469197. Commit log:

This explicit UID was missing for releases 10.10.1.1 and lower.  The default changed between
10.7 and 10.8, so even with this explicit UID in place, serialized data sources created with
10.7 or older would not be readable.  The default UID in 10.7 was -2155993232624542236.  This
was not caught by the serialization tests at the time since the "40"-suffixed data sources
were not tested back then, cf DERBY-5955 http://svn.apache.org/viewvc?view=revision&revision=1438035
.

                
> Examine Derby classes to determine if we need to add serialVersionUID to any of them
> ------------------------------------------------------------------------------------
>
>                 Key: DERBY-6128
>                 URL: https://issues.apache.org/jira/browse/DERBY-6128
>             Project: Derby
>          Issue Type: Task
>          Components: JDBC
>            Reporter: Rick Hillegas
>         Attachments: derby-6128-ecpds40.diff, SerializableLister.java
>
>
> The discussion on DERBY-6124 has raised the possibility that we may need to add serialVersionUIDs
to some serializable Derby classes. Without the serialVersionUIDs, Derby may encounter deserialization
errors on objects which were serialized by one version of Derby or the JVM and then deserialized
by another version of Derby or the JVM.

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