<s>
Jini	B-Language
(	O
)	O
,	O
also	O
called	O
Apache	B-Language
River	I-Language
,	O
is	O
a	O
network	B-Architecture
architecture	I-Architecture
for	O
the	O
construction	O
of	O
distributed	B-Architecture
systems	I-Architecture
in	O
the	O
form	O
of	O
modular	O
co-operating	O
services	O
.	O
</s>
<s>
JavaSpaces	B-Operating_System
is	O
a	O
part	O
of	O
the	O
Jini	B-Language
.	O
</s>
<s>
Originally	O
developed	O
by	O
Sun	O
Microsystems	O
,	O
Jini	B-Language
was	O
released	O
under	O
the	O
Apache	B-Application
License	I-Application
2.0	I-Application
.	O
</s>
<s>
Responsibility	O
for	O
Jini	B-Language
has	O
been	O
transferred	O
to	O
Apache	O
under	O
the	O
project	O
name	O
"	O
River	O
"	O
.	O
</s>
<s>
Sun	O
Microsystems	O
introduced	O
Jini	B-Language
in	O
July	O
1998	O
.	O
</s>
<s>
In	O
November	O
1998	O
,	O
Sun	O
announced	O
that	O
there	O
were	O
some	O
firms	O
supporting	O
Jini	B-Language
.	O
</s>
<s>
The	O
Jini	B-Language
team	O
at	O
Sun	O
has	O
always	O
stated	O
that	O
Jini	B-Language
is	O
not	O
an	O
acronym	O
.	O
</s>
<s>
Ken	O
Arnold	O
has	O
joked	O
that	O
it	O
means	O
"	O
Jini	B-Language
Is	O
Not	O
Initials	O
"	O
,	O
making	O
it	O
a	O
recursive	O
anti-acronym	O
,	O
but	O
it	O
has	O
always	O
been	O
just	O
Jini	B-Language
.	O
</s>
<s>
The	O
word	O
'	O
jini	B-Language
 '	O
means	O
"	O
the	O
devil	O
"	O
in	O
Swahili	O
;	O
this	O
is	O
borrowed	O
from	O
the	O
Arabic	O
word	O
for	O
a	O
mythological	O
spirit	O
,	O
originated	O
from	O
the	O
Latin	O
genius	O
,	O
which	O
is	O
also	O
the	O
origin	O
of	O
the	O
English	O
word	O
'	O
genie	B-Language
 '	O
.	O
</s>
<s>
Jini	B-Language
provides	O
the	O
infrastructure	O
for	O
the	O
Service-object-oriented	O
architecture	O
(	O
SOOA	O
)	O
.	O
</s>
<s>
Services	O
try	O
to	O
contact	O
a	O
lookup	O
service	O
(	O
LUS	O
)	O
,	O
either	O
by	O
unicast	B-Protocol
interaction	O
,	O
when	O
it	O
knows	O
the	O
actual	O
location	O
of	O
the	O
lookup	O
service	O
,	O
or	O
by	O
dynamic	O
multicast	O
discovery	O
.	O
</s>
<s>
This	O
strategy	O
is	O
more	O
convenient	O
than	O
Java	B-Language
remote	I-Language
method	I-Language
invocation	I-Language
,	O
which	O
requires	O
the	O
client	O
to	O
know	O
the	O
location	O
of	O
the	O
remote	O
service	O
in	O
advance	O
.	O
</s>
<s>
Jini	B-Language
uses	O
a	O
lookup	O
service	O
to	O
broker	O
communication	O
between	O
the	O
client	O
and	O
service	O
.	O
</s>
