Log4j: XML configuration file problem

Question

Hello,
I set up some logging in my existing application with log4j and an xml configuration file. Now I made some changes to my package structure, and some problems occured. So I thougt of setting the logging level of one of my loggers (named myapp.iointerface.DBAccess in the config file). So the only change I did was adding a <param name="Level" value="TRACE"/> to my logger. Now, log4j complains when it reads the configruation file:
log4j:WARN Continuable parsing error 36 and column 11
log4j:WARN The content of element type "logger" must match "(level?,appender-ref*)".My config file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration debug="false" xmlns:log4j="http://jakarta.apache.org/log4j/">
     <appender name="RootConsole" class="org.apache.log4j.ConsoleAppender">
          <param name="Threshold" value="DEBUG"/>
          <param name="Target" value="System.err"/>
          <layout class="org.apache.log4j.PatternLayout">
               <param name="ConversionPattern" value="%d{dd MM yyyy HH:mm:ss} %p %C %nIn Zeile Nummer: %L %m %n%n"/>
          </layout>
     </appender>
     <appender name="LoginInfo" class="org.apache.log4j.FileAppender">
          <param name="Threshold" value="TRACE"/>
          <param name="File" value="${user.dir}/login_info.log"/>
          <layout class="org.apache.log4j.PatternLayout">
               <param name="ConversionPattern" value="%d{dd MM yyyy HH:mm:ss} %p %C %nIn Zeile Nummer: %L %m %n%n"/>
          </layout>
     </appender>
     <appender name="DBConnectionInfo" class="org.apache.log4j.FileAppender">
          <param name="Threshold" value="TRACE"/>
          <param name="File" value="${user.dir}/db_connection.log"/>
          <layout class="org.apache.log4j.PatternLayout">
               <param name="ConversionPattern" value="%d{dd MM yyyy HH:mm:ss} %p %C %n%m %n%n"/>
          </layout>
     </appender>
     <logger name="myapp.windows.MainFrameController" additivity="false">
          <appender-ref ref="LoginInfo"/>
     </logger>
     <logger name="myapp.iointerface.DBAccess" additivity="false">
          <param name="Level" value="TRACE"/>
          <appender-ref ref="DBConnectionInfo"/>
     </logger>
     <root>
          <param name="Level" value="DEBUG"/>
          <appender-ref ref="RootConsole"/>
     </root>
</log4j:configuration>Does anybody know what's wrong with that? I don't understand and found nothing googling it netiher. The strange thing is, that logging messages with level TRACE are recorded in the destination file, but the level id DEBUG.
Thx,
Julien

Answer 1

If you look at the error, the parser expects level and not Level
So :
<param name="Level" value="TRACE"/>should be :
<param name="level" value="TRACE"/>Same goes for :
<param name="Level" value="DEBUG"/>That will solve the problem (even though it is not a critical error)!