On Fri, 13 Aug 2010 23:08:40 +0400
Mikhail Kryshen <mikh...@kryshen.net> wrote:
>
> I doubt it is possible to create runtime like JVM or CLR without patent
> problems.
Given that virtual machine technology "like"(1) the JVM and CLR have
been around since the 70s - long before even C++ ++ -- was a gleam in
Gosling's eye - I'm pretty sure it's possible to create a runtime
"like" the JVM or CLR that has no insurmountable patent
problems. Sure, Oracle can create problems for anyone implementing a
VM by suing them, but if you started with something like either the
UCSD P-Machine VM or a SmallTalk VM (Squeak, maybe?) - which Gosling
cites as inspirations for the JVM (2) - such suits are clearly
baseless, as the technology is obviously prior art. So it can't
infringe the patent, only invalidate it.
<mike
*) This all depends on exactly what you mean by "like". Gosling and
the Java group at Sun are sharp people, I'm sure they added ideas that
were patentable, and probably even worth granting a patent to. If
"like" includes "having patented feature foo", then foo may be missing
from the VMs that are prior art, so they aren't "like" JVM or CLR. But
just having a portable VM also qualifies as "like" JVM in some sense.
1) http://queue.acm.org/detail.cfm?id=1017013
--
Mike Meyer <m...@mired.org> http://www.mired.org/consulting.html
Independent Network/Unix/Perforce consultant, email for more information.
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