[LOG4J2-2237] Move Jackson-based layouts to their own modules: JSON, XML, and YAML

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Core, Layouts
• Epic Link: Log4j-core modularization
• Assignee: Gary D. Gregory
• Reporter: Gary D. Gregory
• Created: 30/Jan/18 16:44
• Updated: 30/Apr/18 08:21
• Resolved: 20/Feb/18 05:33

Description

This is part of removing dependencies from log4j-core so that we only depend on Java 9's java.base in log4j-core.

Move Jackson-based layouts to their own modules:

• log4j-layout-jackson
• log4j-layout-jackson-json
• log4j-layout-jackson-xml brings in XML specific Jackson jar(s)
• log4j-layout-jackson-yaml brings in YAML specific Jackson jar(s)

The module that holds commons Jackson bits is log4j-layout-jackson.

Issue Links

• breaks: LOG4J2-2285 ConcurrentLoggingWithJsonLayoutTest does nothing