Project: log4j2

Language	java
OSS-Fuzz project	link
Project repository	link
Build status: Fuzzers	succeeding: Build log
Build status: Code coverage	failing: Build log
Build status: Fuzz Introspector	succeeding: Build log
Fuzzer count	5
Lines of code	N/A
Lines covered	N/A
Code coverage	N/A
Code coverage report	Report link
Static reachability	0.03%
Fuzz Introspector report	Report link (from 2025-03-27)

Fuzzer	Code coverage (lines)	Latest Report	Comments

Historical Progression

Per Fuzzer Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.

This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name	Function source file	Accumulated cyclomatic complexity	Code coverage
[org.apache.logging.log4j.core.config.Configurator].initialize(String,ClassLoader,String,Object)	/src/logging-log4j2/log4j-core/src/main/java/org/apache/logging/log4j/core/config/Configurator.java	285	0.0%
[org.apache.logging.log4j.core.config.Configurator].initialize(String,ClassLoader,java.net.URI,Object)	/src/logging-log4j2/log4j-core/src/main/java/org/apache/logging/log4j/core/config/Configurator.java	244	0.0%
[org.apache.logging.log4j.core.config.Configurator].initialize(String,ClassLoader,java.net.URI,Map.Entry<String,Object>)	/src/logging-log4j2/log4j-core/src/main/java/org/apache/logging/log4j/core/config/Configurator.java	243	0.0%
[org.apache.logging.log4j.core.impl.Log4jContextFactory].getContext(String,ClassLoader,Object,boolean,java.net.URI,String)	/src/logging-log4j2/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/Log4jContextFactory.java	235	0.0%
[org.apache.logging.log4j.core.impl.Log4jContextFactory].getContext(String,ClassLoader,Map.Entry<String,Object>,boolean,java.net.URI,String)	/src/logging-log4j2/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/Log4jContextFactory.java	234	0.0%
[org.apache.logging.log4j.core.jmx.LoggerContextAdmin].getConfigText(String)	/src/logging-log4j2/log4j-core/src/main/java/org/apache/logging/log4j/core/jmx/LoggerContextAdmin.java	180	0.0%
[org.apache.logging.log4j.core.config.ConfigurationSource].resetInputStream()	/src/logging-log4j2/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ConfigurationSource.java	174	0.0%
[org.apache.logging.log4j.core.appender.rolling.CronTriggeringPolicy].initialize(org.apache.logging.log4j.core.appender.rolling.RollingFileManager)	/src/logging-log4j2/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/rolling/CronTriggeringPolicy.java	155	0.0%
[org.apache.logging.log4j.core.config.ConfigurationSource].fromUri(java.net.URI)	/src/logging-log4j2/log4j-core/src/main/java/org/apache/logging/log4j/core/config/ConfigurationSource.java	153	0.0%
[org.apache.log4j.xml.DOMConfigurator].configure(java.net.URL)	/src/logging-log4j2/log4j-1.2-api/src/main/java/org/apache/log4j/xml/DOMConfigurator.java	134	0.0%