Implementation for Apache Log4J, a highly configurable logging tool that focuses on performance and low garbage generation. It has a plugin architecture that makes it extensible and supports asynchronous logging based on LMAX Disruptor.
| License | Apache 2.0 |
|---|---|
| Categories | Logging Frameworks |
| Tags | lmaxlogginglog4japache |
| HomePage | https://logging.apache.org/log4j/2.x/ 🔍 Inspect URL |
| Date | Sep 18, 2025 |
| Files | pom (9 KB) jar (1.9 MB) View All |
| Repositories | Central |
| Ranking | #52 in MvnRepository (See Top Artifacts) #6 in Logging Frameworks |
| Used By | 13,351 artifacts |
Compile Dependencies (12)
| Category/License | Group / Artifact | Version | Updates | |
|---|---|---|---|---|
| Collections Apache 2.0 |  | com.conversantmedia » disruptor (optional) | 1.2.15 | 1.2.21 |
| JSON Lib Apache 2.0 |  | com.fasterxml.jackson.core » jackson-core (optional) | 2.19.1 | 3.0.2 |
| JSON Lib Apache 2.0 | | com.fasterxml.jackson.core » jackson-databind (optional) | 2.19.1 | 3.0.2 |
| XML Processing Apache 2.0 | | com.fasterxml.jackson.dataformat » jackson-dataformat-xml (optional) | 2.19.1 | 3.0.2 |
| YAML Apache 2.0 | | com.fasterxml.jackson.dataformat » jackson-dataformat-yaml (optional) | 2.19.1 | 3.0.2 |
| Concurrency Apache 2.0 |  | com.lmax » disruptor (optional) | 3.4.4 | 4.0.0 |
| Compression Apache 2.0 |  | org.apache.commons » commons-compress (optional) | 1.27.1 | 1.28.0 |
| CSV Apache 2.0 | | org.apache.commons » commons-csv (optional) | 1.14.0 | 1.14.1 |
| Message Queue Client Apache 2.0 |  | org.apache.kafka » kafka-clients (optional) | 3.9.1 | 4.1.1 |
| Logging Apache 2.0 | | org.apache.logging.log4j » log4j-api | 2.25.2 | ✔ |
| Concurrency Apache 2.0 |  | org.jctools » jctools-core (optional) | 4.0.5 | ✔ |
| Message Queue Client MPL 2.0 |  | org.zeromq » jeromq (optional) | 0.6.0 | ✔ |
Provided Dependencies (5)
| Category/License | Group / Artifact | Version | Updates | |
|---|---|---|---|---|
| Java Spec EDL 1.0 |  | javax.activation » javax.activation-api (optional) | 1.2.0 | 2.1.4 |
| Message Queue Client EPL 2.0 | | javax.jms » javax.jms-api (optional) | 2.0.1 | 3.1.0 |
| Mail Client EDL 1.0EPL 2.0GPL | | javax.mail » javax.mail-api (optional) | 1.6.2 | 2.1.5 |
| Annotation Lib Apache 2.0 |  | org.jspecify » jspecify | 1.0.0 | ✔ |
| OSGi Apache 2.0 |  | org.osgi » org.osgi.core | 6.0.0 | 8.0.0 |
Runtime Dependencies (1)
| Category/License | Group / Artifact | Version | Updates | |
|---|---|---|---|---|
| Mail Client EDL 1.0EPL 2.0GPL |  | com.sun.mail » javax.mail (optional) | 1.6.2 | 2.0.2 |
Licenses
| License | URL |
|---|---|
| Apache-2.0 | https://www.apache.org/licenses/LICENSE-2.0.txt |
Developers
| Name | Dev Id | Roles | Organization | |
|---|---|---|---|---|
| Ralph Goers | rgoers<at>apache.org | rgoers | PMC Member | Nextiva |
| Gary Gregory | ggregory<at>apache.org | ggregory | PMC Member | The Apache Software Foundation |
| Scott Deboy | sdeboy<at>apache.org | sdeboy | PMC Member | |
| Remko Popma | rpopma<at>apache.org | rpopma | PMC Member | |
| Nick Williams | nickwilliams<at>apache.org | nickwilliams | PMC Member | |
| Matt Sicker | mattsicker<at>apache.org | mattsicker | PMC Member | Apple |
| Bruce Brouwer | bruce.brouwer<at>gmail.com | bbrouwer | Committer | |
| Raman Gupta | rgupta<at>apache.org | rgupta | Committer | |
| Mikael Ståldal | mikes<at>apache.org | mikes | PMC Member | Spotify |
| Carter Kozak | ckozak<at>apache.org | ckozak | PMC Member | |
| Volkan Yazıcı | vy<at>apache.org | vy | PMC Chair | |
| Ron Grabowski | rgrabowski<at>apache.org | rgrabowski | PMC Member | |
| Piotr P. Karwasz | pkarwasz<at>apache.org | pkarwasz | PMC Member | |
| Christian Grobmeier | grobmeier<at>apache.org | grobmeier | PMC Member |
