<s>
Java	B-Application
Pathfinder	I-Application
(	O
JPF	O
)	O
is	O
a	O
system	O
to	O
verify	O
executable	O
Java	B-Language
bytecode	I-Language
programs	O
.	O
</s>
<s>
The	O
acronym	O
JPF	O
is	O
not	O
to	O
be	O
confused	O
with	O
the	O
unrelated	O
Java	B-Language
Plugin	O
Framework	O
project	O
.	O
</s>
<s>
The	O
core	O
of	O
JPF	O
is	O
a	O
Java	B-Language
Virtual	I-Language
Machine	I-Language
.	O
</s>
<s>
JPF	O
executes	O
normal	O
Java	B-Language
bytecode	I-Language
programs	O
and	O
can	O
store	O
,	O
match	O
and	O
restore	O
program	O
states	O
.	O
</s>
<s>
Its	O
primary	O
application	O
has	O
been	O
Model	B-Application
checking	I-Application
of	O
concurrent	B-Architecture
programs	I-Architecture
,	O
to	O
find	O
defects	O
such	O
as	O
data	B-Operating_System
races	I-Operating_System
and	O
deadlocks	B-Operating_System
.	O
</s>
<s>
A	O
number	O
of	O
such	O
projects	O
are	O
available	O
from	O
the	O
main	O
JPF	O
server	O
,	O
including	O
a	O
symbolic	O
execution	O
mode	O
,	O
numeric	O
analysis	O
,	O
race	B-Operating_System
condition	I-Operating_System
detection	O
for	O
relaxed	O
memory	O
models	O
,	O
user	O
interface	O
model	B-Application
checking	I-Application
and	O
many	O
more	O
.	O
</s>
<s>
JPF	O
cannot	O
analyze	O
Java	B-Language
native	I-Language
methods	I-Language
.	O
</s>
