[LOG4J2-2873] Failed to parse json string to LogEvent when massage type is MapMessage

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.13.2, 2.13.3
• Component/s: Core
• Assignee: Unassigned
• Reporter: Alla Gofman
• Created: 17/Jun/20 21:43
• Updated: 22/Jun/20 12:50

Description

I create LogEvent where message is of type MapMessage (key-value pairs).

I send this log event to SocketAppender by JsonLayout.

The json created in attached file.

I tried also setObjectMessageAsJsonObject(true) - same result.

On ServerSocket side I want to parse/deserialize this json string to  LogEvent and log it to File Appender:

LogEvent logEvent = new JsonLogEventParser().parseFrom(line);

 

Then parseFrom() build the LogEvent, message object create of type SimpleMessage and not MapMessage. Then it comes to resolving %map pattern in MapPatternConverter.format() - does nothing and returns.