plugins/org.eclipse.app4mc.amalthea.converters.log4j.configuration/headless_log4j.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'>

	<appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
		<!-- only log errors to the console -->
		<param name="Threshold" value="${app4mc.log.level}"/>
	    <layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%m%n" />
	    </layout>
	</appender>

	<appender name="FILE" class="org.eclipse.app4mc.amalthea.converters.log4j.configuration.MigrationSessionFileAppender">
		<param name="append" value="true"/>
		<param name="dateFormat" value="yyyy-MM-dd_HH_mm_ss"/>
	    <layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern"
			  value="%d{yyyy-MM-dd_HH_mm_ss} - %-5p:  %m%n" />
	    </layout>
	</appender>

	<root>
		<!-- set the log level to debug to catch everything -->
		<!-- on the appenders the threshold is set to filter further -->
		<level value="debug" />
		<appender-ref ref="CONSOLE" />
		<appender-ref ref="FILE" />
	</root>

</log4j:configuration>