There's some controversy around access to the TCK - see:
http://bit.ly/disUZm
On Tue, Jul 13, 2010 at 4:57 PM, <glassfish_at_javadesktop.org> wrote:
> Hi Harald,
>
> With regard to your comments about JPA.... JPA 2.0 provides standardization
> across persistence provider vendors for the functionality defined by the
> specification. Persistence providers that claim JPA 2.0 compatibility must
> pass a suite of certification tests (TCK). When you enter the realm of
> provider-specific features, of course such portability guarantees cannot
> apply. As the JPA technology evolves, we will be standardizing on more of
> these. For example, user-defined types are likely to be added in the next
> release.
>
> The JPA expert group takes very seriously feedback regarding features that
> should be added to the spec. You can send such feedback to the expert group
> at jsr-317-feedback_at_sun.com
>
> thanks,
>
> Linda[b][/b]
> [Message sent by forum member 'ldemichiel']
>
> http://forums.java.net/jive/thread.jspa?messageID=477562
>
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