<s>
Spark	B-Language
is	O
a	O
free	B-License
and	I-License
open-source	I-License
software	I-License
web	B-Application
application	I-Application
framework	I-Application
and	O
domain-specific	B-Language
language	I-Language
written	O
in	O
Java	B-Language
.	O
</s>
<s>
It	O
is	O
an	O
alternative	O
to	O
other	O
Java	B-Language
web	B-Application
application	I-Application
frameworks	I-Application
such	O
as	O
JAX-RS	B-Language
,	O
Play	B-Language
framework	I-Language
and	O
Spring	B-Application
MVC	I-Application
.	O
</s>
<s>
It	O
runs	O
on	O
an	O
embedded	O
Jetty	B-Language
web	O
server	O
by	O
default	O
,	O
but	O
can	O
be	O
configured	O
to	O
run	O
on	O
other	O
webservers	O
.	O
</s>
<s>
Inspired	O
by	O
Sinatra	B-Application
,	O
it	O
does	O
not	O
follow	O
the	O
model	O
–	O
view	O
–	O
controller	O
pattern	O
used	O
in	O
other	O
frameworks	O
,	O
such	O
as	O
Spring	B-Application
MVC	I-Application
.	O
</s>
<s>
Instead	O
,	O
Spark	B-Language
is	O
intended	O
for	O
"	O
quickly	O
creating	O
web-applications	O
in	O
Java	B-Language
with	O
minimal	O
effort.	O
"	O
</s>
<s>
Spark	B-Language
was	O
created	O
and	O
open-sourced	O
in	O
2011	O
by	O
Per	O
Wendel	O
,	O
and	O
was	O
completely	O
rewritten	O
for	O
version	O
2	O
in	O
2014	O
.	O
</s>
<s>
The	O
rewrite	O
was	O
hugely	O
centered	O
on	O
the	O
Java	B-Language
8	O
lambda	O
philosophy	O
,	O
so	O
Java	B-Language
7	O
is	O
officially	O
not	O
supported	O
in	O
version	O
2	O
and	O
above	O
.	O
</s>
<s>
Spark	B-Language
supports	O
these	O
template	O
engines	O
:	O
</s>
