[LOG4J2-1573] Layout is no longer optional

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.7
• Fix Version/s: 2.7
• Component/s: Appenders
• Assignee: Gary D. Gregory
• Reporter: Steffen Offermann
• Created: 09/Sep/16 08:52
• Updated: 15/Sep/16 16:42
• Resolved: 15/Sep/16 16:42

Description

This configuration used to work in 2.6.2:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn">
   <Appenders>
      <Console name="myConsole" target="SYSTEM_OUT"/>
      <Async name="myConsoleAsync">
         <AppenderRef ref="myConsole" />
      </Async>
   </Appenders>
   <Loggers>
      <AsyncRoot level="info" />
   </Loggers>
</Configuration>

With the current master (i.e. the upcoming 2.7) this does not work any more. The validator complains because the field "layout" is missing in

 <Console name="myConsole" target="SYSTEM_OUT" />

According to the current documentation this is a bug:

Parameter Name	Type	Description
layout	Layout	The Layout to use to format the LogEvent. If no layout is supplied the default pattern layout of "%m%n" will be used.

With this configuration it works:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn">
   <Appenders>
      <Console name="myConsole" target="SYSTEM_OUT">
         <DetailsLayout/>
      </Console>
      <Async name="myConsoleAsync">
         <AppenderRef ref="myConsole" />
      </Async>
   </Appenders>
   <Loggers>
      <AsyncRoot level="info" />
   </Loggers>
</Configuration>

Issue Links

• is related to: LOG4J2-1259 Log4j threads are leaking on Tomcat shutdown