JavaDB/Derby Error 08006

In the article Using Java DB in Desktop Applications t开发者_StackOverflow社区he Address Book demo have a method disconnect which have a try-catch block that catch and ignores the exception. If you add a printStackTrace you can see that the exception always occur.

What's wrong here? The JavaDB should not throw this exception, or they should fix something in the example program?

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Shutdown commands always raise SQLExceptions. So nothing's wrong. That's just the way Derby works.