<s>
JSBML	B-Language
(	O
Java	B-Language
Systems	O
Biology	O
Markup	O
Language	O
)	O
is	O
an	O
open-source	B-Application
Java	B-Language
(	O
API	B-General_Concept
)	O
for	O
the	O
SBML	O
(	O
Systems	O
Biology	O
Markup	O
Language	O
)	O
format	O
.	O
</s>
<s>
Its	O
API	B-General_Concept
strives	O
to	O
attain	O
a	O
strong	O
similarity	O
to	O
the	O
Java	B-Language
binding	O
of	O
the	O
corresponding	O
library	B-Library
libSBML	B-Language
,	O
but	O
is	O
entirely	O
implemented	O
in	O
Java	B-Language
and	O
therefore	O
platform	B-Operating_System
independent	I-Operating_System
.	O
</s>
<s>
JSBML	B-Language
provides	O
an	O
elaborated	O
abstract	O
type	O
hierarchy	O
,	O
whose	O
data	O
types	O
implement	O
or	O
extend	O
many	O
interfaces	O
and	O
abstract	O
classes	O
from	O
the	O
standard	O
Java	B-Language
library	B-Library
.	O
</s>
<s>
In	O
this	O
way	O
,	O
JSBML	B-Language
integrates	O
smoothly	O
into	O
existing	O
Java	B-Language
projects	O
,	O
and	O
provides	O
methods	O
to	O
read	O
,	O
write	O
,	O
evaluate	O
,	O
and	O
manipulate	O
the	O
content	O
of	O
SBML	O
documents	O
.	O
</s>
<s>
It	O
turned	O
out	O
that	O
,	O
even	O
though	O
the	O
library	B-Library
libSBML	B-Language
provides	O
a	O
generated	O
binding	O
for	O
the	O
programming	O
language	O
Java	B-Language
,	O
its	O
internal	O
C	B-Language
code	O
makes	O
it	O
difficult	O
to	O
implement	O
platform	B-Operating_System
independent	I-Operating_System
or	O
Web	B-Application
Start	I-Application
applications	O
.	O
</s>
<s>
Around	O
that	O
time	O
,	O
several	O
groups	O
from	O
multiple	O
institutes	O
had	O
already	O
implemented	O
small	O
Java	B-Language
versions	O
of	O
libSBML	B-Language
,	O
each	O
being	O
a	O
customized	O
library	B-Library
covering	O
the	O
needs	O
of	O
the	O
particular	O
research	O
project	O
.	O
</s>
<s>
In	O
order	O
to	O
avoid	O
unnecessary	O
duplications	O
of	O
work	O
and	O
to	O
unify	O
existing	O
development	O
,	O
the	O
international	O
community	O
project	O
JSBML	B-Language
was	O
launched	O
in	O
September	O
2009	O
,	O
mainly	O
by	O
groups	O
from	O
EBI	O
,	O
Caltech	O
,	O
and	O
a	O
team	O
of	O
students	O
at	O
the	O
University	O
of	O
Tübingen	O
led	O
by	O
Andreas	O
Dräger	O
.	O
</s>
<s>
Since	O
JSBML	B-Language
has	O
been	O
implemented	O
considerably	O
later	O
than	O
the	O
first	O
version	O
of	O
libSBML	B-Language
,	O
it	O
could	O
therefore	O
benefit	O
from	O
the	O
existence	O
of	O
the	O
specifications	O
of	O
SBML	O
in	O
the	O
Levels	O
1-3	O
.	O
</s>
<s>
Hence	O
,	O
JSBML	B-Language
has	O
not	O
just	O
been	O
developed	O
by	O
porting	O
existing	O
C	B-Language
code	O
from	O
the	O
libSBML	B-Language
project	O
into	O
a	O
new	O
Java	B-Language
.	O
</s>
<s>
Instead	O
,	O
the	O
developers	O
used	O
this	O
as	O
a	O
chance	O
to	O
completely	O
redesign	O
the	O
class	O
and	O
API	B-General_Concept
structure	O
.	O
</s>
<s>
This	O
is	O
why	O
JSBML	B-Language
provides	O
a	O
much	O
richer	O
abstract	O
type	O
hierarchy	O
compared	O
to	O
libSBML	B-Language
.	O
</s>
<s>
Furthermore	O
,	O
the	O
development	O
of	O
JSBML	B-Language
enabled	O
making	O
design	O
decisions	O
that	O
are	O
not	O
possible	O
in	O
libSBML	B-Language
because	O
no	O
backward	O
compatibility	O
had	O
to	O
be	O
considered	O
at	O
this	O
time	O
.	O
</s>
<s>
The	O
first	O
stable	O
release	O
version	O
0.8	O
of	O
JSBML	B-Language
was	O
made	O
publicly	O
available	O
for	O
download	O
in	O
February	O
2011	O
.	O
</s>
<s>
Since	O
then	O
,	O
support	O
for	O
multiple	O
SBML	O
extension	O
packages	O
is	O
being	O
implemented	O
and	O
will	O
be	O
included	O
with	O
the	O
release	O
of	O
JSBML	B-Language
1.0	O
.	O
</s>
<s>
The	O
development	O
of	O
JSBML	B-Language
is	O
driven	O
by	O
three	O
aims	O
:	O
</s>
<s>
Provide	O
a	O
pure	O
Java	B-Language
API	B-General_Concept
without	O
any	O
native	O
dependency	O
.	O
</s>
<s>
Achieve	O
the	O
highest	O
possible	O
compatibility	O
to	O
libSBML	B-Language
but	O
at	O
the	O
same	O
time	O
make	O
the	O
library	B-Library
behave	O
like	O
other	O
native	O
Java	B-Language
libraries	O
,	O
i.e.	O
,	O
as	O
expected	O
by	O
experienced	O
Java	B-Language
developers	O
.	O
</s>
<s>
The	O
following	O
example	O
assumes	O
that	O
a	O
JAR	B-Language
file	I-Language
of	O
JSBML	B-Language
has	O
been	O
included	O
into	O
the	O
class	O
path	O
and	O
that	O
a	O
local	O
installation	O
of	O
a	O
Java	B-Language
Virtual	I-Language
Machine	I-Language
is	O
available	O
on	O
the	O
platform	O
where	O
the	O
code	O
is	O
executed	O
.	O
</s>
<s>
The	O
creation	O
of	O
the	O
tree	O
for	O
the	O
display	O
is	O
also	O
trivial	O
,	O
because	O
the	O
entire	O
data	O
structure	O
in	O
JSBML	B-Language
is	O
organized	O
as	O
a	O
tree	O
.	O
</s>
<s>
import	O
javax.swing	O
.	O
</s>
<s>
import	O
org.sbml.jsbml	O
.	O
</s>
