[hibernate-issues] [Hibernate-JIRA] Commented: (HBX-964) add serialVersionUID to entity classes

[Dan Allen (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HBX-964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_27515 ] 

Dan Allen commented on HBX-964:
-------------------------------

Your comments are very insightful.  I am very keen on having this documented, regardless of which road is choosen because it is one of those debates that eats up many hours of the day as developers argue back and forth over it. You are right, Eclipse triggered a debate that rarely occurred before it added its "warning" flag, and as it appears, for little reason.

I do feel that the Serializable interface is important. Therefore, I am not going to try to convince you otherwise because what you have said makes complete sense. I would like to see you add an abbreviated version of this reasoning into the documentation.

> add serialVersionUID to entity classes
> --------------------------------------
>
>                 Key: HBX-964
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-964
>             Project: Hibernate Tools
>          Issue Type: Improvement
>          Components: hbm2java
>    Affects Versions: 3.2beta10
>            Reporter: Dan Allen
>            Priority: Minor
>         Attachments: HBX-964-v1.txt
>
>   Original Estimate: 5 minutes
>  Remaining Estimate: 5 minutes
>
> The serialVersionUID is recommended for classes that implement java.io.Serializable.  The hbm2java task should either set the serialVersionUID to 1L or automatically generate a value. I prefer setting it to 1L because it is easy and it will work, but if you feel motivated, you can look at what Eclipse does to generate this value from the class signature.
> I have included a patch that just sets it to 1L.

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