<s>
Java	B-Language
code	I-Language
coverage	I-Language
tools	I-Language
are	O
of	O
two	O
types	O
:	O
first	O
,	O
tools	O
that	O
add	O
statements	O
to	O
the	O
Java	B-Language
source	I-Language
code	I-Language
and	O
require	O
its	O
recompilation	O
.	O
</s>
<s>
The	O
goal	O
is	O
to	O
find	O
out	O
which	O
parts	O
of	O
the	O
code	O
are	O
tested	O
by	O
registering	O
the	O
lines	O
of	O
code	B-Application
executed	I-Application
when	O
running	O
a	O
test	O
.	O
</s>
<s>
JCov	O
is	O
the	O
tool	O
which	O
has	O
been	O
developed	O
and	O
used	O
with	O
Sun	O
JDK	O
(	O
and	O
later	O
Oracle	O
JDK	O
)	O
from	O
the	O
very	O
beginning	O
of	O
Java	B-Language
:	O
from	O
the	O
version	O
1.1	O
.	O
</s>
<s>
JCov	O
is	O
capable	O
of	O
measuring	O
and	O
reporting	O
Java	B-Language
code	I-Language
coverage	O
.	O
</s>
<s>
JCov	O
is	O
distributed	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
Public	I-License
License	I-License
(	O
version	O
2	O
,	O
with	O
the	O
Classpath	O
Exception	O
)	O
.	O
</s>
<s>
JCov	O
has	O
become	O
open-source	B-Application
as	O
a	O
part	O
of	O
OpenJDK	O
code	O
tools	O
project	O
in	O
2014	O
.	O
</s>
<s>
JCov	O
is	O
capable	O
of	O
reporting	O
the	O
following	O
types	O
of	O
code	B-Application
coverage	I-Application
:	O
</s>
<s>
JCov	O
works	O
by	O
instrumenting	O
Java	B-Language
bytecode	O
using	O
two	O
different	O
approaches	O
:	O
</s>
<s>
JaCoCo	B-Language
is	O
an	O
open-source	B-Application
toolkit	O
for	O
measuring	O
and	O
reporting	O
Java	B-Language
code	I-Language
coverage	O
.	O
</s>
<s>
JaCoCo	B-Language
is	O
distributed	O
under	O
the	O
terms	O
of	O
the	O
Eclipse	B-License
Public	I-License
License	I-License
.	O
</s>
<s>
It	O
was	O
developed	O
as	O
a	O
replacement	O
for	O
EMMA	B-Language
,	O
under	O
the	O
umbrella	O
of	O
the	O
EclEmma	O
plug-in	O
for	O
Eclipse	B-Application
.	O
</s>
<s>
JaCoCo	B-Language
offers	O
instructions	O
,	O
line	O
and	O
branch	B-Application
coverage	I-Application
.	O
</s>
<s>
In	O
contrast	O
to	O
Atlassian	B-Language
Clover	I-Language
and	O
OpenClover	O
,	O
which	O
require	O
instrumenting	O
the	O
source	O
code	O
,	O
JaCoCo	B-Language
can	O
instrument	O
Java	B-Language
bytecode	O
using	O
two	O
different	O
approaches	O
:	O
</s>
<s>
Unlike	O
Cobertura	B-Language
and	O
EMMA	B-Language
it	O
fully	O
supports	O
Java	B-Language
7	O
,	O
Java	B-Language
8	O
,	O
Java	B-Language
9	O
,	O
Java	B-Language
10	O
,	O
Java	B-Language
11	O
,	O
Java	B-Language
12	O
,	O
Java	B-Language
13	O
,	O
Java	B-Language
14	O
,	O
Java	B-Language
15	O
,	O
Java	B-Language
16	O
,	O
Java	B-Language
17	O
and	O
Java	B-Language
18	O
.	O
</s>
<s>
OpenClover	O
is	O
a	O
free	O
and	O
open-source	B-Application
successor	O
of	O
Atlassian	B-Language
Clover	I-Language
,	O
created	O
as	O
a	O
fork	B-Application
from	O
the	O
Clover	O
code	O
base	O
published	O
by	O
Atlassian	O
in	O
2017	O
.	O
</s>
<s>
OpenClover	O
uses	O
source	O
code	O
instrumentation	O
technique	O
and	O
handles	O
Java	B-Language
,	O
Groovy	B-Application
and	O
AspectJ	B-Application
languages	O
.	O
</s>
<s>
OpenClover	O
integrates	O
with	O
Ant	B-Application
,	O
Maven	B-Language
,	O
Gradle	B-Language
,	O
Grails	B-Language
,	O
Eclipse	B-Application
,	O
IntelliJ	B-Language
IDEA	I-Language
,	O
Bamboo	O
,	O
Jenkins	B-Language
,	O
Hudson	B-Language
,	O
Griffon	B-Language
,	O
SonarQube	B-Application
and	O
AspectJ	B-Application
.	O
</s>
<s>
Cobertura	B-Language
is	O
an	O
open-source	B-Application
tool	O
for	O
measuring	O
code	B-Application
coverage	I-Application
.	O
</s>
<s>
It	O
was	O
the	O
predecessor	O
to	O
JaCoCo	B-Language
.	O
</s>
<s>
Serenity	O
is	O
an	O
open-source	B-Application
toolkit	O
for	O
measuring	O
and	O
reporting	O
Java	B-Language
code	I-Language
coverage	O
.	O
</s>
<s>
The	O
report	O
data	O
is	O
persisted	O
to	O
an	O
object	O
database	O
,	O
and	O
made	O
available	O
via	O
Jenkins/Hudson	O
.	O
</s>
<s>
The	O
interface	O
replicates	O
the	O
Eclipse	B-Application
IDE	I-Application
interface	O
visually	O
.	O
</s>
<s>
Serenity	O
dynamically	O
enhances	O
the	O
byte	O
code	O
,	O
making	O
a	O
post-compile	O
step	O
unnecessary	O
.	O
</s>
<s>
Ant	B-Application
and	O
Maven	B-Language
projects	O
are	O
supported	O
.	O
</s>
<s>
Configuration	O
is	O
done	O
in	O
xml	O
,	O
an	O
Ant	B-Application
example	O
would	O
be	O
:	O
</s>
<s>
And	O
a	O
Maven	B-Language
configuration	O
example	O
would	O
be	O
:	O
</s>
<s>
For	O
a	O
full	O
example	O
of	O
a	O
configuration	O
please	O
refer	O
to	O
the	O
Jenkins	B-Language
wiki	O
at	O
.	O
</s>
<s>
Jenkins	B-Language
slaves	O
as	O
well	O
as	O
Maven	B-Language
multi	O
module	O
projects	O
are	O
supported	O
.	O
</s>
<s>
Testwell	O
CTC++	O
is	O
a	O
code	B-Application
coverage	I-Application
tool	O
for	O
C	B-Language
,	O
C++	B-Language
,	O
Java	B-Language
and	O
C#	B-Application
.	O
</s>
<s>
Testwell	O
CTC++	O
analyses	O
for	O
all	O
code	B-Application
coverage	I-Application
levels	O
up	O
to	O
Modified	O
condition/decision	O
coverage	O
and	O
Multicondition	O
Coverage	O
.	O
</s>
<s>
The	O
tool	O
works	O
with	O
all	O
compilers	B-Language
.	O
</s>
<s>
IntelliJ	B-Language
IDEA	I-Language
Code	B-Application
Coverage	I-Application
Agent	O
is	O
a	O
code	B-Application
coverage	I-Application
tool	O
integrated	O
in	O
IntelliJ	B-Language
IDEA	I-Language
IDE	O
and	O
TeamCity	B-Application
CI	O
server	O
.	O
</s>
<s>
It	O
supports	O
branch	B-Application
coverage	I-Application
and	O
per-test	O
coverage	O
tracking	O
.	O
</s>
<s>
Clover	O
is	O
a	O
Java	B-Language
code	I-Language
coverage	O
analysis	O
utility	O
bought	O
and	O
further	O
developed	O
by	O
Atlassian	O
.	O
</s>
<s>
In	O
April	O
2017	O
Atlassian	O
announced	O
end-of-life	O
of	O
Clover	O
and	O
at	O
the	O
same	O
time	O
open-sourced	O
it	O
under	O
Apache	B-Application
2.0	I-Application
license	I-Application
.	O
</s>
<s>
Clover	O
uses	O
a	O
source	O
code	O
instrumentation	O
technique	O
(	O
as	O
opposed	O
to	O
Cobertura	B-Language
and	O
JaCoCo	B-Language
,	O
which	O
use	O
byte	O
code	O
instrumentation	O
)	O
,	O
which	O
has	O
its	O
advantages	O
(	O
such	O
as	O
an	O
ability	O
to	O
collect	O
code	O
metrics	O
)	O
and	O
disadvantages	O
(	O
re-compilation	O
of	O
sources	O
is	O
necessary	O
)	O
.	O
</s>
<s>
Clover	O
comes	O
with	O
a	O
number	O
of	O
integrations	O
both	O
developed	O
by	O
Atlassian	O
(	O
Ant	B-Application
,	O
Maven	B-Language
,	O
Grails	B-Language
,	O
Eclipse	B-Application
,	O
IDEA	O
,	O
Bamboo	O
)	O
and	O
by	O
open	O
source	O
community	O
(	O
Gradle	B-Language
,	O
Griffon	B-Language
,	O
Jenkins	B-Language
,	O
Hudson	B-Language
,	O
Sonar	B-Application
)	O
.	O
</s>
<s>
In	O
April	O
2017	O
,	O
Atlassian	O
announced	O
that	O
they	O
would	O
no	O
longer	O
release	O
new	O
versions	O
of	O
Clover	O
after	O
version	O
4.1.2	O
,	O
and	O
its	O
code	O
was	O
made	O
available	O
as	O
open-source	B-Application
software	I-Application
hosted	O
on	O
Bitbucket	B-Protocol
.	O
</s>
<s>
EMMA	B-Language
is	O
an	O
open-source	B-Application
toolkit	O
for	O
measuring	O
and	O
reporting	O
Java	B-Language
code	I-Language
coverage	O
.	O
</s>
<s>
EMMA	B-Language
is	O
distributed	O
under	O
the	O
terms	O
of	O
Common	O
Public	O
License	O
v1.0	O
.	O
</s>
<s>
EMMA	B-Language
is	O
not	O
currently	O
under	O
active	O
development	O
;	O
the	O
last	O
stable	O
release	O
took	O
place	O
in	O
mid-2005	O
.	O
</s>
<s>
As	O
replacement	O
,	O
JaCoCo	B-Language
was	O
developed	O
.	O
</s>
<s>
EMMA	B-Language
works	O
by	O
wrapping	O
each	O
line	O
of	O
code	O
and	O
each	O
condition	O
with	O
a	O
flag	O
,	O
which	O
is	O
set	O
when	O
that	O
line	O
is	O
executed	O
.	O
</s>
<s>
EMMA	B-Language
can	O
detect	O
when	O
a	O
single	O
source	O
code	O
line	O
is	O
covered	O
only	O
partially	O
.	O
</s>
<s>
Makefile	O
and	O
ANT	B-Application
build	O
integration	O
are	O
supported	O
on	O
equal	O
footing	O
.	O
</s>
<s>
Memory	O
overhead	O
is	O
a	O
few	O
hundred	O
bytes	O
per	O
Java	B-Language
class	O
.	O
</s>
<s>
EMMA	B-Language
is	O
100%	O
pure	O
Java	B-Language
,	O
has	O
no	O
external	O
library	O
dependencies	O
,	O
and	O
works	O
in	O
any	O
Java	B-Language
2	O
JVM	O
(	O
even	O
1.2.x	O
)	O
.	O
</s>
