<s>
Apache	B-Language
Excalibur	I-Language
project	O
produces	O
a	O
set	O
of	O
libraries	O
for	O
component	O
based	O
programming	O
in	O
the	O
Java	B-Language
language	I-Language
.	O
</s>
<s>
Its	O
main	O
products	O
include	O
the	O
inversion	B-Language
of	I-Language
control	I-Language
(	O
IoC	O
)	O
framework	O
Avalon	O
,	O
an	O
Avalon-based	O
container	O
named	O
Fortress	O
,	O
and	O
a	O
set	O
of	O
Avalon	O
compatible	O
software	O
components	O
.	O
</s>
<s>
Since	O
that	O
time	O
Apache	B-Language
Excalibur	I-Language
has	O
hosted	O
the	O
Avalon	O
framework	O
and	O
related	O
source	O
code	O
.	O
</s>
