1. Mining Version Archives
for Co-changed Lines
Tom Zimmermann • Saarland University, Saarbrücken
Sunghun Kim • University of California, Santa Cruz
Andreas Zeller • Saarland University, Saarbrücken
E. James Whitehead, Jr • University of California, Santa Cruz

2. Annotating Lines
Tx12 Tx23 Tx42 Tx79
1: 1: 1: 1:
ADD
2: 2: 2: 2:
3: 3: 3: 3:
4: 4: 4: 4:
5: 5: 5: 5:
CHG DEL
6: 6: 6: 6:
7: 7: 7: 7:
8: 8: 8: 8:
9: 9: 9: 9:
10: 10: 10: 10:
11: 11: 11: 11:
CHG
12: 12: 12: 12:
CHG
13: 13: 13:
14: 14: 14:
15: 15:
16: 16:

3. Annotating Lines
Tx12 Tx23 Tx42 Tx79 Annotation
1: 1: 1: 1: 1: 12
ADD
2: 2: 2: 2: 2: 12
3: 3: 3: 3: 3: 23
4: 4: 4: 4: 4: 23
5: 5: 5: 5: 5: 23
CHG DEL
6: 6: 6: 6: 6: 12
7: 7: 7: 7: 7: 12
8: 8: 8: 8: 8: 12; 23
9: 9: 9: 9: 9: 12; 23
10: 10: 10: 10: 10: 12; 23; 79
11: 11: 11: 11: 11: 12
CHG
12: 12: 12: 12: 12: 12
CHG
13: 13: 13: 13: 12
14: 14: 14: 14: 12
15: 15:
16: 16:

4. Frequently Changed Lines
org.eclipse.jdt.doc.isv/jdtOptions.txt
1: -charset quot;iso-8859-1quot;
2: -sourcepath [...]
3: -d reference/api
4: -classpath @rt@;../org.apache.ant/lib/ant.jar;../org.eclipse.debug.core/@dot;../org.eclipse.compare/@dot;../org.ec
lipse.help/@dot;../org.eclipse.help.ui/@dot;../org.eclipse.core.resources/@dot;../org.eclipse.core.runtime/@dot;..
/org.eclipse.core.filebuffers/@dot;../org.eclipse.core.expressions/@dot;../org.eclipse.swt.win32.win32.x86/@dot;.
./org.eclipse.ui/@dot;../org.eclipse.jdt.debug/jdi.jar;../org.eclipse.debug.ui/@dot;../org.eclipse.search/@dot;../org.e
clipse.jface/@dot;../org.eclipse.jface.text/@dot;../org.eclipse.text/@dot;../org.eclipse.ui.editors/@dot;../org.eclips
e.ui.views/@dot;../org.eclipse.ui.workbench/@dot;../org.eclipse.ui.workbench.texteditor/@dot;../org.eclipse.core
.variables/@dot;../org.eclipse.ui.ide/@dot;../org.eclipse.jdt.junit/@dot;../org.eclipse.osgi/@dot;../org.eclipse.osgi.s
ervices/@dot;../org.eclipse.osgi.util/@dot;../org.eclipse.ui.forms/@dot;../org.eclipse.core.commands/@dot;../org.
eclipse.ltk.core.refactoring/@dot;../org.eclipse.ltk.ui.refactoring/@dot;../org.eclipse.core.filesystem/@dot;../org.e
clipse.core.jobs/@dot;../org.eclipse.equinox.registry/@dot;../org.eclipse.equinox.common/@dot;../org.eclipse.co
re.contenttype/@dot;../org.eclipse.equinox.preferences/@dot;../org.eclipse.equinox.supplement/@dot;../org.ecli
pse.core.runtime.content/@dot;../org.eclipse.core.runtime.jobs/@dot;../org.eclipse.core.runtime.preferences/@
dot
5: -breakiterator
6: -use

5. Frequently Changed Lines
org.eclipse.jdt.doc.isv/jdtOptions.txt
1: -charset quot;iso-8859-1quot;
2: -sourcepath [...]
3: -d reference/api
4: -classpath @rt@;../org.apache.ant/lib/ant.jar;../org.eclipse.debug.core/@dot;../org.eclipse.compare/@dot;../org.ec
lipse.help/@dot;../org.eclipse.help.ui/@dot;../org.eclipse.core.resources/@dot;../org.eclipse.core.runtime/@dot;..
/org.eclipse.core.filebuffers/@dot;../org.eclipse.core.expressions/@dot;../org.eclipse.swt.win32.win32.x86/@dot;.
ED
./org.eclipse.ui/@dot;../org.eclipse.jdt.debug/jdi.jar;../org.eclipse.debug.ui/@dot;../org.eclipse.search/@dot;../org.e
NG
HA
clipse.jface/@dot;../org.eclipse.jface.text/@dot;../org.eclipse.text/@dot;../org.eclipse.ui.editors/@dot;../org.eclips
C
e.ui.views/@dot;../org.eclipse.ui.workbench/@dot;../org.eclipse.ui.workbench.texteditor/@dot;../org.eclipse.core
.variables/@dot;../org.eclipse.ui.ide/@dot;../org.eclipse.jdt.junit/@dot;../org.eclipse.osgi/@dot;../org.eclipse.osgi.s
ES
TIM
ervices/@dot;../org.eclipse.osgi.util/@dot;../org.eclipse.ui.forms/@dot;../org.eclipse.core.commands/@dot;../org.
28
eclipse.ltk.core.refactoring/@dot;../org.eclipse.ltk.ui.refactoring/@dot;../org.eclipse.core.filesystem/@dot;../org.e
clipse.core.jobs/@dot;../org.eclipse.equinox.registry/@dot;../org.eclipse.equinox.common/@dot;../org.eclipse.co
re.contenttype/@dot;../org.eclipse.equinox.preferences/@dot;../org.eclipse.equinox.supplement/@dot;../org.ecli
pse.core.runtime.content/@dot;../org.eclipse.core.runtime.jobs/@dot;../org.eclipse.core.runtime.preferences/@
dot
5: -breakiterator
6: -use

6. Co-change on Lines
j2me/Library.java
...
25: static int MINOR_VERSION = 215;
...
version.txt
1: version 3.215
j2se/Library.java
...
25: static int MINOR_VERSION = 215;
...

7. Co-change on Lines
j2me/Library.java
...
25: static int MINOR_VERSION = 215;
ED
...
NG
HA
C
ES
version.txt
TIM
71
1
1: version 3.215
ER
TH
GE
TO
j2se/Library.java
...
25: static int MINOR_VERSION = 215;
...