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From Ron Grabowski <>
Subject Re: Will OpenJPA 2.1.x ever be incorporated into a WAS7 feature pack?
Date Thu, 22 Dec 2011 23:09:56 GMT
Sounds reasonable. Historically have issues been the only thing that have prompted new snapshots
of OpenJPA 2.0.x to be included in WAS7 fixpacks? If the OpenJPA community writes a new whiz-bang
feature in the 2.0.x stream could it qualify for inclusion in a fixpack or has WAS7+OpenJPA
2.0.x entered a "no updates unless its broke" phase?

Does anyone know if IBM maintains its own WebSphere JPA documentation? The "Getting Started
with the Feature Pack for OSGi Applications and JPA 2.0" RedBook [1] states:

JPA for WebSphere Application Server comes with two JPA 2.0 persistence providers:
- Apache OpenJPA persistence provider
- JPA for WebSphere Application Server persistence provider

Is there documentation on-line for "JPA for WebSphere Application Server persistence provider"
or is it the exact same as the documentation found on the OpenJPA site [2]?

Sorry mailing-list for the IBM specific questions...feel free to passive aggressively point
to me archived threads if this has already been discussed. My team recently moved from another
vendor's JPA implementation to OpenJPA for its WAS compatibility and we're trying to learn
the lay of the land.


[1] -

[2] -

 From: Kevin Sutter <>
To:; Ron Grabowski <> 
Sent: Thursday, December 22, 2011 5:26 PM
Subject: Re: Will OpenJPA 2.1.x ever be incorporated into a WAS7 feature pack?

Hi Ron,
WebSphere continues to support their JPA solutions via improvements to the corresponding OpenJPA
offerings.  The OSGi/JPA 2.0 Feature Pack is based on the OpenJPA 2.0.x service stream. 
WebSphere's v8 solution is based on the OpenJPA 2.1.x service stream.

If issues are discovered in any of these environments, then an appropriate fix is developed
for the Apache OpenJPA service stream and that is ultimately pulled into an iFix or fixpack
for the WebSphere product.  An issue that is discovered in WAS v8, for example, can normally
be back-ported to previous releases, such as the OSGi/JPA 2.0 Feature Pack (as it applies).

New features for one release (ie. WebSphere v8) are not normally candidates for back-porting
to previous releases (ie. OSGi/JPA 2.0 Feature Pack).

Hope this helps,

On Thu, Dec 22, 2011 at 4:11 PM, Ron Grabowski <> wrote:

I couldn't find anything on the OpenJPA or IBM WAS website(s) about how/if/when IBM decides
to package OpenJPA improvements into future feature packs. Does anyone know if a future WAS7
feature pack will include OpenJPA 2.1.x? Along those same lines, is WAS8's JPA implementation
based on OpenJPA 2.1.x?
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