Ah, the patent protection stems from the TCK. Which isn't open. Just
ask Apache.

This is not a good thing at all. Oracle, stop this silly crap. This
way, claiming java is "open" is a farce.

On Sep 10, 7:24 am, Keith Haber <[email protected]> wrote:
> First, IANAL.
>
> My guess is that your hypothetical OpenPL2 based on OpenJDK would be
> completely in the clear on copyright grounds, but completely *not* in
> the clear on patent grounds (since you're removing the core Java
> libraries).
>
> You probably want to start athttp://openjdk.java.net/legal/,
> especiallyhttp://openjdk.java.net/legal/openjdk-tck-license.pdf.  It
> specifically disallows subsets and supersets of the "Licensor Name
> Space," meaning the Java core classes and interfaces.  You need the
> TCK license to get the patent grants, and you can't get the TCK
> license if your derivative fails to pass the compatibility tests.  The
> "GPL v2 with Classpath Exception" only gives you the necessary
> copyright license, not any patent license.
>
> The Apache Harmony project has been loudly protesting the IP licensing
> situation for a while now.
>
> Implementing a JVM alternative won't necessarily protect you from
> Oracle's lawyers either.  It's certainly not protecting Google; Dalvik
> is itself a JVM alternative, after all, and that's what Oracle is
> suing them over.
>
> I hope my theory is completely wrong, because the situation kinda
> sucks for the open-source community (and arguably the IT industry as a
> whole) if I'm right.
>
> Keith
>
> On Sep 9, 3:52 pm, Jan Goyvaerts <[email protected]> wrote:
>
>
>
> > Interesting... so, in theory, any organisation with sufficient funds and
> > expertise might actually pull it off to create a serious VM language. It
> > would be the right time for that.
>
> > But I guess it would be risky to claim PL/2 happens to be able to use any
> > already existing Java libraries ?
>
> > On Thu, Sep 9, 2010 at 21:12, Kevin Wright <[email protected]> wrote:
> > > Unless somebody had a trademark on "PL2", they might still come after
> > > you...
>
> > > On 9 September 2010 20:09, Reinier Zwitserloot <[email protected]> wrote:
>
> > >> In theory, they wouldn't come, as that's legit according to the
> > >> license. You do have to give full credit and you'd have to release it
> > >> under the GPL as well.
>
> > >> IANAL.
>
> > >> On Sep 9, 8:38 pm, Jan Goyvaerts <[email protected]> wrote:
> > >> > I know there has been *many* messages already about last day events
> > >> > regarding to the future of Java. Although certainly inspired by it, I
> > >> have a
> > >> > question that is not about Java or any other language. So please,
> > >> *don't* waste
> > >> > this thread into something else. Thanks.
> > >> > *
> > >> > *
> > >> > * *
> > >> > Suppose I want to create a new programming language PL/2, whatever my
> > >> > reasons for that...
>
> > >> > 1) I download OpenJDK (I know it's great).
> > >> > 2) I rename every "java" into "pl2". (I know I can't call it "Java").
> > >> > 3) I republish the thing as an open source project OpenPL2.
>
> > >> > How fast can I expect lawyers to knock on my door ?
>
> > >> --
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>
> > > --
> > > Kevin Wright
>
> > > mail / gtalk / msn : [email protected]
> > > pulse / skype: kev.lee.wright
> > > twitter: @thecoda
>
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