From: Arun Gupta <arun.gupta_at_gmail.com>
Date: Tue, 26 Aug 2014 11:12:34 -0700

There is clear evidence that nobody is using @DataSourceDefinition in
production code. See the conversation at:

https://twitter.com/arungupta/status/504039335688404992

Seems like its good only for demos. I'd urge platform EG and other EGs
in Java EE 8 to strongly consider adding a similar annotation.

Cheers
Arun

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