apache / logging-log4j-samples

Zoomable circles (number of contributors per file): 30 days | 90 days | 6 months | past year | all time

Files with only one contributor are shown as grey.

Contributors

Recent Contributors (7)

Committed in past 6 months (a rookie = the first commit in past year)

Past 30 days (5):

private@logging.apache.org

pkarwasz-github@apache.org

piotr@github.copernik.eu

andrey000mar@gmail.com

jendrik.johannes@gmail.com

Past 31 to 90 days (2):

piotr.github@karwasz.org

cjohnson@gradle.com

No contributors in past 91 to 180 days.

Historical Contributors (15)

Last contributors more than 6 months ago

volkan@yazi.ci

mikael@staldal.nu

garydgregory@gmail.com

ggregory@apache.org

robots@logging.apache.org

rpopma@apache.org

ggregory@us-l-gg05.rocketsoftware.com

mikael.staldal@magine.com

nick-j-white49@example.com

github@seansullivan.com

mernst@cs.washington.edu

rgoers@apache.org

pascalschumacher@gmx.net

boards@gmail.com

ruhulmus@gmail.com

Contributors Matrix (Per Month)

	Commits (3m)	Commit Days	1	5	1	3	1	2	2	3	2	2	1	2	4	3	-	-	2	4	3	3	2	-	-	-	1
pkarwasz-github@apache.org	12	6			-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
private@logging.apache.org	27	101	-														-	-			-		-	-	-	-	-
piotr@github.copernik.eu	1	1	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
andrey000mar@gmail.com	1	1	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
jendrik.johannes@gmail.com	1	1	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
piotr.github@karwasz.org	3	42	-	-	-		-						-				-	-						-	-	-
cjohnson@gradle.com	1	1	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
nick-j-white49@example.com	-	1	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
volkan@yazi.ci	-	11	-	-	-	-	-	-	-	-	-	-	-	-			-	-	-					-	-	-	-
github@seansullivan.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-
robots@logging.apache.org	-	5	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-			-	-	-	-	-	-
mernst@cs.washington.edu	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
boards@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ruhulmus@gmail.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
rgoers@apache.org	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
garydgregory@gmail.com	-	6	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ggregory@apache.org	-	5	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
mikael@staldal.nu	-	8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
rpopma@apache.org	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ggregory@us-l-gg05.rocketsoftware.com	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
pascalschumacher@gmx.net	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
mikael.staldal@magine.com	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Bots Matrix (Per Month)

Commits
(3m)

Commit
Days

-

5 contributors (22 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	File Updates (per extension)
1.	private@logging.apache.org	2023-10-09	2025-04-15	9 (40%)	xml (5), yaml (3), gradle (1)
2.	pkarwasz-github@apache.org	2025-04-01	2025-05-03	10 (45%)	yaml (8), gradle (5), xml (1), (1), gitignore (1)
3.	piotr@github.copernik.eu	2025-04-13	2025-04-13	1 (4%)	yaml (1)
4.	andrey000mar@gmail.com	2025-04-13	2025-04-13	1 (4%)	md (2), java (1)
5.	jendrik.johannes@gmail.com	2025-04-10	2025-04-10	1 (4%)	gradle (3), adoc (3), yaml (2), java (2), properties (2)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 30 days.

Contributor Dependencies via Shared Files

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	Contributor 1	Contributor 2	# shared files
1.	jendrik.johannes@gmail.com	pkarwasz-github@apache.org	9 shared files
2.	pkarwasz-github@apache.org	piotr@github.copernik.eu	1 shared file .github/workflows/build.yaml
3.	private@logging.apache.org	pkarwasz-github@apache.org	1 shared file
4.	private@logging.apache.org	jendrik.johannes@gmail.com	1 shared file

Most Connected Contributors

	Contributor	# connections	# commits
1.	pkarwasz-github@apache.org	3	10
2.	private@logging.apache.org	2	9
3.	jendrik.johannes@gmail.com	2	1
4.	piotr@github.copernik.eu	1	1
5.	andrey000mar@gmail.com	0	1

C-median: 2.0

A half of the contributors has more than 2.0 connections, and a half has less than this number.

C-mean: 2.0

An average number of connections a contributor has with other contributors.

C-index: 2.0

There are 2.0 contributors with 2.0 or more connections.

7 contributors (46 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	File Updates (per extension)
1.	private@logging.apache.org	2023-10-09	2025-04-15	27 (58%)	xml (20), yaml (4), gradle (3)
2.	piotr.github@karwasz.org	2022-09-25	2025-02-27	3 (6%)	xml (5), java (2)
3.	pkarwasz-github@apache.org	2025-04-01	2025-05-03	12 (26%)	yaml (8), gradle (5), xml (3), (1), gitignore (1)
4.	piotr@github.copernik.eu	2025-04-13	2025-04-13	1 (2%)	yaml (1)
5.	andrey000mar@gmail.com	2025-04-13	2025-04-13	1 (2%)	md (2), java (1)
6.	jendrik.johannes@gmail.com	2025-04-10	2025-04-10	1 (2%)	gradle (3), adoc (3), yaml (2), java (2), properties (2)
7.	cjohnson@gradle.com	2025-02-27	2025-02-27	1 (2%)	yaml (1)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 90 days.

Contributor Dependencies via Shared Files

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- open 2D force graph
- open 3D force graph
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	Contributor 1	Contributor 2	# shared files
1.	jendrik.johannes@gmail.com	pkarwasz-github@apache.org	9 shared files
2.	private@logging.apache.org	pkarwasz-github@apache.org	3 shared files
3.	private@logging.apache.org	piotr.github@karwasz.org	1 shared file pom.xml
4.	pkarwasz-github@apache.org	piotr.github@karwasz.org	1 shared file pom.xml
5.	private@logging.apache.org	cjohnson@gradle.com	1 shared file
6.	pkarwasz-github@apache.org	piotr@github.copernik.eu	1 shared file .github/workflows/build.yaml
7.	private@logging.apache.org	jendrik.johannes@gmail.com	1 shared file

Most Connected Contributors

	Contributor	# connections	# commits
1.	private@logging.apache.org	4	27
2.	pkarwasz-github@apache.org	4	12
3.	piotr.github@karwasz.org	2	3
4.	jendrik.johannes@gmail.com	2	1
5.	piotr@github.copernik.eu	1	1
6.	cjohnson@gradle.com	1	1
7.	andrey000mar@gmail.com	0	1

C-median: 2.0

A half of the contributors has more than 2.0 connections, and a half has less than this number.

C-mean: 2.3

An average number of connections a contributor has with other contributors.

C-index: 2.0

There are 2.0 contributors with 2.0 or more connections.

7 contributors (85 commits):

#	Contributor	First Commit	Latest Commit	Commits Count
1.	private@logging.apache.org	2023-10-09	2025-04-15	56 (65%)
2.	piotr.github@karwasz.org	2022-09-25	2025-02-27	13 (15%)
3.	pkarwasz-github@apache.org	2025-04-01	2025-05-03	12 (14%)
4.	piotr@github.copernik.eu	2025-04-13	2025-04-13	1 (1%)
5.	andrey000mar@gmail.com	2025-04-13	2025-04-13	1 (1%)
6.	jendrik.johannes@gmail.com	2025-04-10	2025-04-10	1 (1%)
7.	cjohnson@gradle.com	2025-02-27	2025-02-27	1 (1%)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 180 days.

Contributor Dependencies via Shared Files

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	Contributor 1	Contributor 2	# shared files
1.	pkarwasz-github@apache.org	jendrik.johannes@gmail.com	9 shared files
2.	private@logging.apache.org	piotr.github@karwasz.org	4 shared files
3.	private@logging.apache.org	pkarwasz-github@apache.org	3 shared files
4.	pkarwasz-github@apache.org	piotr.github@karwasz.org	2 shared files pom.xml log4j-samples-graalvm/pom.xml
5.	private@logging.apache.org	cjohnson@gradle.com	1 shared file
6.	cjohnson@gradle.com	piotr.github@karwasz.org	1 shared file
7.	jendrik.johannes@gmail.com	piotr.github@karwasz.org	1 shared file
8.	pkarwasz-github@apache.org	piotr@github.copernik.eu	1 shared file .github/workflows/build.yaml
9.	private@logging.apache.org	jendrik.johannes@gmail.com	1 shared file

Most Connected Contributors

	Contributor	# connections	# commits
1.	private@logging.apache.org	4	56
2.	piotr.github@karwasz.org	4	13
3.	pkarwasz-github@apache.org	4	12
4.	jendrik.johannes@gmail.com	3	1
5.	cjohnson@gradle.com	2	1
6.	piotr@github.copernik.eu	1	1
7.	andrey000mar@gmail.com	0	1

C-median: 3.5

A half of the contributors has more than 3.5 connections, and a half has less than this number.

C-mean: 3.0

An average number of connections a contributor has with other contributors.

C-index: 3.0

There are 3.0 contributors with 3.0 or more connections.

10 contributors (202 commits):

#	Contributor	First Commit	Latest Commit	Commits Count
1.	private@logging.apache.org	2023-10-09	2025-04-15	127 (62%)
2.	piotr.github@karwasz.org	2022-09-25	2025-02-27	56 (27%)
3.	volkan@yazi.ci	2023-09-13	2024-05-13	1 (<1%)
4.	pkarwasz-github@apache.org	2025-04-01	2025-05-03	12 (5%)
5.	piotr@github.copernik.eu	2025-04-13	2025-04-13	1 (<1%)
6.	andrey000mar@gmail.com	2025-04-13	2025-04-13	1 (<1%)
7.	jendrik.johannes@gmail.com	2025-04-10	2025-04-10	1 (<1%)
8.	cjohnson@gradle.com	2025-02-27	2025-02-27	1 (<1%)
9.	nick-j-white49@example.com	2024-10-07	2024-10-07	1 (<1%)
10.	github@seansullivan.com	2024-05-13	2024-05-13	1 (<1%)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 365 days.

Contributor Dependencies via Shared Files

- show contributor dependencies 2D graph
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	Contributor 1	Contributor 2	# shared files
1.	nick-j-white49@example.com	piotr.github@karwasz.org	21 shared files
2.	private@logging.apache.org	piotr.github@karwasz.org	10 shared files
3.	pkarwasz-github@apache.org	jendrik.johannes@gmail.com	9 shared files
4.	pkarwasz-github@apache.org	piotr.github@karwasz.org	6 shared files
5.	private@logging.apache.org	pkarwasz-github@apache.org	4 shared files
6.	jendrik.johannes@gmail.com	piotr.github@karwasz.org	4 shared files
7.	volkan@yazi.ci	github@seansullivan.com	3 shared files
8.	pkarwasz-github@apache.org	volkan@yazi.ci	2 shared files pom.xml .github/dependabot.yaml
9.	pkarwasz-github@apache.org	github@seansullivan.com	2 shared files pom.xml .github/dependabot.yaml
10.	piotr.github@karwasz.org	volkan@yazi.ci	2 shared files pom.xml .github/dependabot.yaml
11.	piotr.github@karwasz.org	github@seansullivan.com	2 shared files pom.xml .github/dependabot.yaml
12.	private@logging.apache.org	nick-j-white49@example.com	2 shared files
13.	private@logging.apache.org	volkan@yazi.ci	1 shared file pom.xml
14.	private@logging.apache.org	github@seansullivan.com	1 shared file pom.xml
15.	private@logging.apache.org	cjohnson@gradle.com	1 shared file
16.	cjohnson@gradle.com	piotr.github@karwasz.org	1 shared file
17.	pkarwasz-github@apache.org	piotr@github.copernik.eu	1 shared file .github/workflows/build.yaml
18.	piotr@github.copernik.eu	piotr.github@karwasz.org	1 shared file .github/workflows/build.yaml
19.	piotr@github.copernik.eu	private@logging.apache.org	1 shared file .github/workflows/build.yaml
20.	private@logging.apache.org	jendrik.johannes@gmail.com	1 shared file
21.	pkarwasz-github@apache.org	nick-j-white49@example.com	1 shared file
22.	jendrik.johannes@gmail.com	nick-j-white49@example.com	1 shared file

Most Connected Contributors

	Contributor	# connections	# commits
1.	private@logging.apache.org	8	127
2.	piotr.github@karwasz.org	8	56
3.	pkarwasz-github@apache.org	7	12
4.	volkan@yazi.ci	4	1
5.	jendrik.johannes@gmail.com	4	1
6.	nick-j-white49@example.com	4	1
7.	github@seansullivan.com	4	1
8.	piotr@github.copernik.eu	3	1
9.	cjohnson@gradle.com	2	1
10.	andrey000mar@gmail.com	0	1

C-median: 4.0

A half of the contributors has more than 4.0 connections, and a half has less than this number.

C-mean: 4.8

An average number of connections a contributor has with other contributors.

C-index: 4.0

There are 4.0 contributors with 4.0 or more connections.

Contributors' details...