[Objectbridge-jdo-dev] RE: [OJB-developers] replace javax.jdo source in current tree with latest jar

[Florian B. <bf...@fl...>]

Hi,

> One minor issue: you included the jdori.jar into the OJB lib directory.
> As far as I can see you are using it only for the enhancement, right?
> Is it allowed to ship this jar file with OJB?
> If there are any possible legal issues, we should use a different (i.e.
> a selfimplemented) enhancer.
>
> thanks again,
>
> Thomas

just checked the license of the two files in question. IANAL, but  I think
we'll have to remove them to avoid licensing issues.

jdo.jar and jdori.jar are part of the reference implementation of JDO from
Sun, and that is licensed unter the sun community source license. The
paragraph in question says:

"
a) Research Use License:

	(i) use, reproduce and modify the Original Code,
Upgraded Code and Specifications to create Modifications and
Reformatted Specifications for Research Use by You, (ii)
publish and display Original Code, Upgraded Code and
Specifications with, or as part of Modifications, as
permitted under Section 3.1 b) below, (iii) reproduce and
distribute copies of Original Code and Upgraded Code to
Licensees and students for Research Use by You, (iv)
compile, reproduce and distribute Original Code and Upgraded
Code in Executable form, and Reformatted Specifications to
anyone for Research Use by You.
"

My understanding of this paragraph is, that we'd only be able the JDO part
of OJB under these conditions and only for research. This implies that we'll
not be able to release a "production quality" version of OJB-JDO. What we
jave to go for is a "clean-room" implementation, the requirements for this
are stipulated in the license of the JDO specification:

"
Sun hereby grants you a fully-paid, non-exclusive,
non-transferable, worldwide, limited license (without the
right to sublicense), under Sun's intellectual property
rights that are essential to practice the Specification, to
internally practice the Specification for the purpose of
designing and developing your Java applets and applications
intended to run on the Java platform or creating a clean
room implementation of the Specification that:  (i) includes
a complete implementation of the current version of the
Specification, without subsetting or supersetting; (ii)
implements all of the interfaces and functionality of the
Specification without subsetting or supersetting; (iii)
includes a complete implementation of any optional
components (as defined by the Specification) which you
choose to implement, without subsetting or supersetting;
(iv) implements all of the interfaces and functionality of
such optional components, without subsetting or
supersetting; (v) does not add any additional packages,
classes or interfaces to the "java.*" or "javax.*" packages
or subpackages or other packages defined by the
Specification; (vi) satisfies all testing requirements
available from Sun relating to the most recently published
version of the Specification six (6) months prior to any
release of the clean room implementation or upgrade thereto;
(vii) does not derive from any Sun source code or binary
code materials; and (viii) does not include any Sun source
code or binary code materials without an appropriate and
separate license from Sun.  The Specification contains the
proprietary information of Sun and may only be used in
accordance with the license terms set forth herein.  This
license will terminate immediately without notice from Sun
if you fail to comply with any provision of this license.
Upon termination or expiration of this license, you must
cease use of or destroy the Specification.
"

jdo.jar is also part of the specification, but paragraph viii contains a
clause that this .jar mustn't be used by a clean-room implementation as well
(and that is our goal, isn't it?)

I don't want to spread any FUD, but we should check these things before
proceeding. I'd also think that we should contact sombody of jakarta who is
familiar with licensing issues.

best regards,
Florian