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Deprecate usage of TCCL in <code>Loader/LoaderUtil</code>

Status: Open.

#2850 In apache/logging-log4j2;

· ppkarwasz opened on Aug 16, 2024

<code>ClassLoaderContextSelector</code> should create a separate context per classloader

bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing code

Status: Open.

#2314 In apache/logging-log4j2;

· ppkarwasz opened on Feb 22, 2024

No error emitted when using a YAML configuration without additional dependency

bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing code

configurationAffects the configuration system in a general wayAffects the configuration system in a general way

Status: Open.

#1501 In apache/logging-log4j2;

· designatevoid opened on Jun 2, 2023

<code>Appender#stop</code> is not idempotent

appendersAffects one or more Appender pluginsAffects one or more Appender plugins

bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing code

Status: Open.

#1653 In apache/logging-log4j2;

· ppkarwasz opened on Aug 1, 2023

Log disruptor initialization errors

Status: Open.

#2250 In apache/logging-log4j2;

· ppkarwasz opened on Jan 26, 2024

Move JSpecify from <code>provided</code> to <code>compile</code> scope

Status: Open (in progress).

apache/logging-log4j2number 3228

#3228 In apache/logging-log4j2;

· ppkarwasz opened on Nov 22, 2024

Migrate <code>log4j-core-test</code> to JUnit 5

testsPull requests or issues related to testsPull requests or issues related to tests

Status: Open (in progress).

apache/logging-log4j2number 3061

#3061 In apache/logging-log4j2;

· ninetteadhikari opened on Oct 7, 2024

Fix handling of <code>onMatch</code> and <code>onMismatch</code> attributes in the properties configuration format

bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing code

configurationAffects the configuration system in a general wayAffects the configuration system in a general way

good first issueIssues that are good for contributors looking to get startedIssues that are good for contributors looking to get started

Status: Open.

#2791 In apache/logging-log4j2;

· linghengqian opened on Aug 2, 2024

Fix <code>RegexFilter</code> pattern flags

bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing code

configurationAffects the configuration system in a general wayAffects the configuration system in a general way

javaPull requests that update Java codePull requests that update Java code

Status: Open.

#3086 In apache/logging-log4j2;

· JWT007 opened on Oct 14, 2024

Add Support for Custom Headers in SMTP Appender

appendersAffects one or more Appender pluginsAffects one or more Appender plugins

enhancementAdditions or updates to featuresAdditions or updates to features

Status: Open.

Feature

#3704 In apache/logging-log4j2;

· ppkarwasz opened on Jun 1, 2025

Performance improvement to DefaultThreadContextMap

apiAffects the public APIAffects the public API

performanceIssues or PRs that affect performance, throughput, latency, etc.Issues or PRs that affect performance, throughput, latency, etc.

Status: Open.

#3935 In apache/logging-log4j2;

· jengebr opened on Sep 19, 2025

ThrowableStackTraceRenderer HashMap key collision causes ArrayIndexOutOfBoundsException with custom exception equals() methods

bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing code

layoutsAffects one or more Layout pluginsAffects one or more Layout plugins

Status: Open.

#3933 In apache/logging-log4j2;

· shinstev333 opened on Sep 18, 2025

LOG4J2-2073: Fix NPE in ConfigurationScheduler when scheduling cron tasks

bugIncorrect, unexpected, or unintended behavior of existing codeIncorrect, unexpected, or unintended behavior of existing code

configurationAffects the configuration system in a general wayAffects the configuration system in a general way

Status: Open (in progress).

apache/logging-log4j2number 3941

#3941 In apache/logging-log4j2;

· bhawnapannu2701 opened on Sep 25, 2025

ApiLogger.setUseParentHandlers warning references <code>setLevel</code> and not <code>setUseParentHandlers</code>

documentationPull requests or issues that affect documentationPull requests or issues that affect documentation

Status: Open.

#3942 In apache/logging-log4j2;

· jmax01 opened on Sep 26, 2025