<s>
Retrotranslator	B-Language
is	O
a	O
program	O
written	O
in	O
Java	B-Language
that	O
converts	O
Java	B-Language
classes	O
(	O
bytecode	O
)	O
.	O
</s>
<s>
The	O
source	O
classes	O
may	O
use	O
Java	B-Language
1.5	O
and	O
Java	B-Language
1.6	O
features	O
,	O
whereas	O
the	O
target	O
will	O
be	O
compatible	O
with	O
Java	B-Language
1.4	O
and	O
older	O
environments	O
.	O
</s>
<s>
Retrotranslator	B-Language
supports	O
all	O
Java	B-Language
5	O
language	O
features	O
and	O
part	O
of	O
the	O
Java	B-Language
5	O
API	O
on	O
both	O
J2SE	O
1.4	O
and	O
J2SE	O
1.3	O
.	O
</s>
<s>
On	O
older	O
Java	B-Language
environments	O
only	O
the	O
Java	B-Language
5	O
features	O
that	O
do	O
n't	O
depend	O
on	O
the	O
new	O
API	O
are	O
supported	O
.	O
</s>
