<s>
Ehcache	B-Language
(	O
)	O
is	O
an	O
open	O
source	O
Java	B-Language
distributed	B-Operating_System
cache	I-Operating_System
for	O
general-purpose	O
caching	B-General_Concept
,	O
Java	B-Language
EE	I-Language
and	O
.	O
</s>
<s>
Ehcache	B-Language
is	O
available	O
under	O
an	O
Apache	B-Application
open	I-Application
source	I-Application
license	I-Application
.	O
</s>
<s>
Ehcache	B-Language
was	O
developed	O
by	O
Greg	O
Luck	O
starting	O
in	O
2003	O
.	O
</s>
<s>
The	O
software	O
is	O
still	O
open-source	O
,	O
but	O
some	O
new	O
major	O
functionalities	O
(	O
Fast	O
Restartability	O
Consistency	O
)	O
are	O
available	O
only	O
in	O
commercial	O
products	O
,	O
like	O
Enterprise	O
Ehcache	B-Language
and	O
BigMemory	O
,	O
which	O
are	O
not	O
open	O
source	O
.	O
</s>
<s>
In	O
March	O
2011	O
,	O
the	O
Wikimedia	O
Foundation	O
announced	O
it	O
would	O
use	O
Ehcache	B-Language
to	O
improve	O
the	O
performance	O
of	O
its	O
wiki	O
projects	O
.	O
</s>
<s>
The	O
name	O
Ehcache	B-Language
is	O
a	O
palindrome	O
.	O
</s>
