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From "Aaron Digulla (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2944) Derby doesn't allow more than one instance per VM
Date Tue, 17 Jul 2007 21:16:04 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12513363

Aaron Digulla commented on DERBY-2944:

How about running two versions of Derby in two classloaders in the same VM?

> Derby doesn't allow more than one instance per VM
> -------------------------------------------------
>                 Key: DERBY-2944
>                 URL: https://issues.apache.org/jira/browse/DERBY-2944
>             Project: Derby
>          Issue Type: Bug
>          Components: Miscellaneous
>    Affects Versions:
>            Reporter: Aaron Digulla
> If you have an IDE or a DB tool, you cannot dynamically load/unload the embedded derby
> In Eclipse BIRT, this created the following situation: The examples use Derby 10.1. My
application uses 10.2. I can't switch between the examples and the reports in my application
without restarting Eclipse and patching the Derby plugin.
> It would be great if you could add a method which we could call to cleanup the embedded
driver so we can throw the classloader away and load another instance of Derby.

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