[LOG4J2-2652] JSON output wrong when using additonal fields

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.12.0
• Fix Version/s: 2.13.1
• Component/s: Layouts
• Assignee: Unassigned
• Reporter: Andreas Winter
• Created: 09/Jul/19 07:23
• Updated: 23/Feb/20 07:09
• Resolved: 17/Feb/20 02:29

Description

When using additional fields in the JsonLayout the output is something like

{"logEvent":"File not found","source":"BIG","timestamp":"07-09-2019"}

instead of the full JSON string as of version 2.10 (where everything works as expected).

Config used:

 

<?xml version="1.0" encoding="UTF-8"?>
 <Configuration>
   <Appenders>
     <Console name="CONSOLE">
       <JsonLayout complete="false" compact="true" eventEol="true" stacktraceAsString="true">
         <KeyValuePair key="source" value="BIG"/>
         <KeyValuePair key="timestamp" value="$${date:MM-dd-yyyy}"/>
       </JsonLayout>
      </Console>
    </Appenders>
   <Loggers>
      <Root level="info">
        <AppenderRef ref="CONSOLE"/>
      </Root>
    </Loggers>
 </Configuration>

 

Issue Links

• is duplicated by: LOG4J2-2734 Backwards incompatible change of JsonLayout from 2.11 to 2.12
• links to: GitHub Pull Request #307