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QOS.CH projects





QOS.CH SARL (SWITZERLAND)

QOS.ch Sarl (Switzerland) is a software design and development company based in
Vouvry, Switzerland. Our company has experience building mission-critical
enterprise software using the Java language.


PROFESSIONAL SUPPORT

Although the quality of support for various open source projects can be good,
most are operated on a best-effort basis. If you require authoritative responses
and guaranteed response times, then please read on.

As the founding contributors of several open source projects, namely log4j 1.x,
reload4j, slf4j and logback, we offer professional support for these projects.

The base support package entails guaranteed response times. Just as importantly,
it includes a review of your logging practices. Such reviews often result in
considerable savings in reduced infrastructure costs. We also offer custom
development services.

For more information about our support package please contact us. We will be
happy to provide further details and discuss your specific needs.


DONATIONS AND SPONSORSHIPS

You can also support SLF4J/logback projects via donations and sponsorship. We
thank our current supporters and sponsors for their continued contributions.


CONTACT

Email:   sales(at)qos.ch Postal Address:   QOS.ch Sàrl
  rue Arthur Parchet 1
  CH-1896 Vouvry (VS)
  Switzerland



PREVALENCE OF LOGGING FRAMEWORKS

Regarding the log4shell vulnerability, the prevalence of various java logging
libraries puts things into perspective. Here are the relevant figures as found
in mvnrepository site on 2024-04-11.

Project Category group:artifact usageCount percentage SLF4J API
org.slf4j:slf4j-api 67,312 69% Commons-logging API
commons-logging:commons-logging 11,980 12% SLF4J API org.slf4j:jcl-over-slf4j
8,988 9% LOG4J 2.x API org.apache.logging.log4j:log4j-api 8,729 9% Total API -
96,987 100%

Project Category group:artifact usageCount percentage LOGBACK implementation
ch.qos.logback:logback-classic 27,222 48% LOG4J 1.x implementation log4j:log4j
18,418 33% LOG4J 2.x implementation org.apache.logging.log4j:log4j-core 10,757
19% Total implementaion - 56,397 100%

Notwithstanding its 48% prevalence overall (in the implementation category), no
attacks have been reported against logback that we are aware of.

Copyright © 2024 QOS.ch Sarl (Switzerland)
This document is licensed under a Creative Commons BY-SA LicenseLogo created by
Lise Martins