[LOG4J2-2119] log4j-core do not include log4j-api

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 2.9.1
• Component/s: API

Environment

Simple Tomcat Spring Application

• Assignee: Unassigned
• Reporter: dennis lucero
• Created: 15/Nov/17 13:45
• Updated: 15/Nov/17 16:28
• Resolved: 15/Nov/17 16:28

Description

When upgraded from log4j-core 2.8.2 or 2.9.0 to 2.9.1 logging stops working.

I have noticed this because of using spring-jcl (new component since spring 5 to sanitize logging) which cannot discover log4j2 because of missing class org.apache.logging.log4j.spi.ExtendedLogger which is part of API jar.

To reproduce this create simple maven-war aplication and add following to pom.xml:

<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.9.1</version>
</dependency>

then run mvn package to assemble that war and inspect WEB-INF/lib. You will see that log4j-api is missing.

This might be connected with following issue: LOG4J2-2084

PS
I'm not sure why it missing since log4j-core pom.xml seems to have log4j-api dependency.