qos-ch/slf4j

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Simple Logging Facade for Java

Stars: 2.5k
Forks: 1k
Open beginner issues: 0
Indexed issues: 47

Dominant language: Java
License: MIT
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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47 open issues indexed

Nullable annotations for SLF4J 3.0 Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

qos-ch/slf4j#493 · Opened Sep 18, 2026
Excessive complexity Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

qos-ch/slf4j#490 · 2 comments · Opened Aug 19, 2026
Please add logback-classic to BOM Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

qos-ch/slf4j#478 · Opened Feb 10, 2026
Modernize Java support, update dependencies, and improve OSGi compatibility Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

qos-ch/slf4j#477 · 1 comment · Opened Jan 31, 2026
Custom configuration for your Slf4j logger Open

qos-ch/slf4j#475 · 2 comments · 1 assignee · Opened Jan 19, 2026
How are MDC.pushByKey() and related methods supposed to work? Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

qos-ch/slf4j#474 · 2 comments · Opened Nov 24, 2025
Newline character is configurable Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

qos-ch/slf4j#472 · 1 comment · Opened Nov 18, 2025
Cannot be loaded under Oracle 23ai Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

qos-ch/slf4j#467 · Opened Jun 26, 2025
avoid logViaPublicSLF4JLoggerAPI showing with log messages Open

IN_PROGRESS

qos-ch/slf4j#464 · 4 comments · 1 assignee · Opened May 23, 2025
add support for peekByKey in MDC Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

qos-ch/slf4j#461 · 4 comments · Opened May 21, 2025
SLF4JServiceProvider.getMDCAdapter() called on an uninitialized provider Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

qos-ch/slf4j#454 · Opened Mar 6, 2025
Publish git tags as actual GitHub releases Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

qos-ch/slf4j#452 · 2 reactions · Opened Feb 6, 2025
SecurityManager is deprecated for removal Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

qos-ch/slf4j#445 · 1 reaction · Opened Dec 10, 2024
Allow to pass in a "formatted message" via SLF4J LoggingEvent (in addition to "message" field) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

qos-ch/slf4j#437 · 9 comments · Opened Oct 22, 2024
Optimization suggestion for org.slf4j.helpers.MessageFormatter.arrayFormat(String, Object[], Throwable) Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

qos-ch/slf4j#435 · Opened Oct 7, 2024
Repos being scanned by SCANOSS Open

Difficulty 1/5 Under an hour Newbie friendliness 25/100

qos-ch/slf4j#434 · 2 comments · Opened Oct 6, 2024
`SimpleLogger` should implement `LoggingEventAware` Open

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

qos-ch/slf4j#433 · Opened Oct 1, 2024
`package-list` is not present for javadocs Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

qos-ch/slf4j#432 · 1 comment · Opened Sep 22, 2024
org.slf4j.LoggerFactory can not load SLF4JServiceProvider with org.eclipse.osgi.internal.loader.EquinoxClassLoader Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

qos-ch/slf4j#427 · 10 comments · Opened Aug 27, 2024
Another unexpected new log `SLF4J(I): Attempting to load provider "org.apache.logging.slf4j.SLF4JServiceProvider" specified via "slf4j.provider" system property` Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

qos-ch/slf4j#426 · 4 reactions · Opened Aug 22, 2024
slf4j-jdk14 adapter: Logger.log's fqcn parameter ignored Open

DONE

qos-ch/slf4j#425 · 21 comments · 1 assignee · Opened Aug 14, 2024
Oracle JDK builds include proprietary javadoc Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

qos-ch/slf4j#419 · 4 comments · 2 reactions · Opened Jul 29, 2024
[Feature] 'Strict' startup mode that fails if no or multiple bindings are configured Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

qos-ch/slf4j#418 · 1 reaction · Opened Jun 12, 2024
org.slf4j.LoggerFactory (in module org.slf4j) cannot access class org.slf4j.impl.StaticLoggerBinder (JPMS APPLICATION) Open

NOT_A_BUG

qos-ch/slf4j#415 · 2 comments · 1 assignee · Opened Apr 17, 2024
[BUG] - JCL-Over-SLF4J Module Definition does not specify the service loader for JPMS applications Open

qos-ch/slf4j#414 · 1 comment · 1 reaction · 1 assignee · Opened Apr 14, 2024
load slf4j 2.0.x Exceptions in OSGI , the version number and check mode are incorrect. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

qos-ch/slf4j#412 · 1 comment · Opened Apr 13, 2024
JUL bridge and System.Logger are inconsistent on handling of OFF and ALL Open

NOT_A_BUG

Difficulty 3/5 1-2 days Newbie friendliness 42/100

qos-ch/slf4j#407 · 10 comments · Opened Mar 26, 2024
putCloseable should not remove the key from MDC if it was previously set to a different value Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

qos-ch/slf4j#404 · 1 comment · 1 reaction · Opened Mar 15, 2024
Deprecate `jcl-over-slf4j` for removal Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

qos-ch/slf4j#403 · 2 comments · 2 reactions · Opened Mar 15, 2024
`slf4j-api-2.0.11` throws `java.lang.NullPointerException` in Android build Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

qos-ch/slf4j#401 · 9 comments · 1 reaction · Opened Mar 9, 2024
[Feature Request]: Add error method with varargs and Throwable in Logger interface Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

qos-ch/slf4j#400 · 1 comment · Opened Mar 1, 2024
MDC + Context Propagation Feature Request Open

IN_PROGRESS

qos-ch/slf4j#399 · 11 comments · 3 reactions · 1 assignee · Opened Feb 22, 2024
MavenGate (CVE) Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

qos-ch/slf4j#397 · 1 reaction · Opened Feb 15, 2024
Some links from FAQ document don't work. Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

qos-ch/slf4j#395 · 2 comments · Opened Feb 6, 2024
Message formatting with last argument being Throwable Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

qos-ch/slf4j#390 · 4 comments · 2 reactions · Opened Jan 25, 2024
[question] How do you pronounce SLF4J? Open

Difficulty 1/5 Under an hour Newbie friendliness 15/100

qos-ch/slf4j#389 · Opened Jan 25, 2024
MDC Usage regression Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

qos-ch/slf4j#388 · 10 comments · 2 reactions · Opened Jan 22, 2024
No-op logger is not a sane default Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

qos-ch/slf4j#387 · 8 comments · 5 reactions · Opened Jan 21, 2024
[question] Log4j Version Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

qos-ch/slf4j#382 · 5 comments · Opened Dec 20, 2023
license url (in POM) pointing to the generic license instead of actual license Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

qos-ch/slf4j#381 · Opened Dec 19, 2023
Fluent logging of primitive types Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

qos-ch/slf4j#375 · 4 comments · Opened Dec 10, 2023
Add support for log level independent logging Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

qos-ch/slf4j#374 · Opened Dec 8, 2023
The compatibility about 1.7.36 & 2.x Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

qos-ch/slf4j#370 · 3 comments · Opened Dec 2, 2023
Can we log the message to stdout when there is no provider available? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

qos-ch/slf4j#369 · 1 comment · Opened Nov 29, 2023
DefaultLoggingEventBuilder/Log4jEventBuilder "addArgument" with supplier behaves same as constant value. Open

NOT_A_BUG

qos-ch/slf4j#367 · 1 comment · 1 assignee · Opened Nov 18, 2023
`slf4j-simple-impl` logging implementation artifact separate from its exposed service provider artifact. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

qos-ch/slf4j#366 · 1 comment · Opened Nov 14, 2023
Search for service provider using context class loader as a fallback Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

qos-ch/slf4j#365 · 5 comments · Opened Nov 9, 2023

qos-ch/slf4j

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