jps/jps-builders/src/defaultLogConfig.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">
    <param name="Target" value="System.err"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%-5p %c{1} - %m%n"/>
    </layout>
  </appender>

  <appender name="file" class="org.apache.log4j.RollingFileAppender">
    <param name="MaxFileSize" value="20Mb"/>
    <param name="MaxBackupIndex" value="20"/>
    <param name="file" value="$LOG_FILE_PATH$"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d [%7r] %6p - %30.30c - %m \n"/>
    </layout>
  </appender>

  <root>
    <priority value="info" />
    <appender-ref ref="file" />
  </root>

</log4j:configuration>