My log4j configuration

log4j.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration PUBLIC "-//log4j/log4j Configuration//EN" "log4j.dtd">
 
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
     
    <appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
       <layout class="org.apache.log4j.PatternLayout"> 
          <param name="ConversionPattern" value="%d %-5p %c.%M:%L - %m%n"/> 
       </layout> 
    </appender>
  
    <!-- specify the logging level for loggers from other libraries -->
    <logger name="com.opensymphony">
        <level value="DEBUG" />
    </logger>
 
    <logger name="org.apache.struts2">
         <level value="DEBUG" />
    </logger>
   
   <!-- for all other loggers log only debug and above log messages -->
     <root>
        <priority value="INFO"/> 
        <appender-ref ref="STDOUT" /> 
     </root> 
     
</log4j:configuration>