<s>
The	O
Open	B-License
Software	I-License
License	I-License
(	O
OSL	O
)	O
is	O
a	O
software	B-License
license	I-License
created	O
by	O
Lawrence	O
Rosen	O
.	O
</s>
<s>
The	O
Open	O
Source	O
Initiative	O
(	O
OSI	O
)	O
has	O
certified	O
it	O
as	O
an	O
open-source	B-Application
license	O
,	O
but	O
the	O
Debian	O
project	O
judged	O
version	O
1.1	O
to	O
be	O
incompatible	O
with	O
the	O
DFSG	B-License
.	O
</s>
<s>
The	O
OSL	O
is	O
a	O
copyleft	B-License
license	I-License
,	O
with	O
a	O
termination	O
clause	O
triggered	O
by	O
filing	O
a	O
lawsuit	O
alleging	O
patent	O
infringement	O
.	O
</s>
<s>
Many	O
people	O
in	O
the	O
free	B-License
software	I-License
and	I-License
open-source	I-License
community	I-License
feel	O
that	O
software	O
patents	O
are	O
harmful	O
to	O
software	O
,	O
and	O
are	O
particularly	O
harmful	O
to	O
open-source	B-Application
software	I-Application
.	O
</s>
<s>
The	O
OSL	O
is	O
intended	O
to	O
be	O
similar	O
to	O
the	O
LGPL	B-Application
.	O
</s>
<s>
The	O
OSL	O
is	O
not	O
compatible	O
with	O
the	O
GPL	B-License
.	O
</s>
<s>
It	O
has	O
been	O
claimed	O
that	O
the	O
OSL	O
is	O
intended	O
to	O
be	O
legally	O
stronger	O
than	O
the	O
GPL	B-License
(	O
with	O
the	O
main	O
difference	O
"	O
making	O
the	O
software	O
available	O
for	O
use	O
over	O
the	O
Internet	O
requires	O
making	O
the	O
source	O
code	O
available	O
"	O
that	O
is	O
the	O
same	O
goal	O
as	O
the	O
even	O
newer	O
GNU	B-Application
Affero	I-Application
General	I-Application
Public	I-Application
License	I-Application
(	O
AGPL	O
)	O
,	O
that	O
is	O
compatible	O
with	O
GPLv3	O
)	O
,	O
however	O
,	O
unlike	O
the	O
GPL	B-License
,	O
the	O
OSL	O
has	O
never	O
been	O
tested	O
in	O
court	O
and	O
is	O
not	O
widely	O
used	O
.	O
</s>
<s>
In	O
its	O
analysis	O
of	O
the	O
OSL	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
claims	O
that	O
"	O
this	O
requirement	O
means	O
that	O
distributing	O
OSL	O
software	O
on	O
ordinary	O
FTP	O
sites	O
,	O
sending	O
patches	O
to	O
ordinary	O
mailing	O
lists	O
,	O
or	O
storing	O
the	O
software	O
in	O
an	O
ordinary	O
version	O
control	O
system	O
,	O
can	O
arguably	O
be	O
a	O
violation	O
of	O
the	O
license	O
and	O
would	O
subject	O
violators	O
to	O
possible	O
termination	O
of	O
the	O
license	O
.	O
</s>
<s>
If	O
the	O
FSF	O
claim	O
is	O
true	O
then	O
the	O
main	O
difference	O
between	O
the	O
GPL	B-License
and	O
OSL	O
concerns	O
possible	O
restrictions	O
on	O
redistribution	O
.	O
</s>
<s>
The	O
patent	O
action	O
termination	O
clause	O
,	O
described	O
above	O
,	O
is	O
a	O
further	O
significant	O
difference	O
between	O
the	O
OSL	O
and	O
GPL	B-License
.	O
</s>
<s>
Mulgara	O
,	O
a	O
triplestore	O
written	O
in	O
Java	B-Language
(	O
new	O
code	O
is	O
being	O
contributed	O
using	O
the	O
Apache	B-Application
2.0	I-Application
license	I-Application
.	O
)	O
</s>
