[LOG4J2-3072] Issues creating A Lookup Plugin

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 2.14.1
• Component/s: Configuration
• Assignee: Unassigned
• Reporter: Paul Rubin
• Created: 15/Apr/21 13:05
• Updated: 15/Apr/21 13:51
• Resolved: 15/Apr/21 13:14

Description

While creating PlugIns for JSON template logging I ran into these issues:

• The name of the plugin must be lowercase, this was not identified in the doc, so not sure if this is a doc bug or a comparison bug.
• Only map form is supported, there is no way to trigger the no parameter version 

@Override
public String lookup(String key) {

and without a ":" in the replacement the defaultLookup is used which always fails to call the plugin.