title: logger.debug(...) is printing twice in log file
body: <p>We have written some <code>logger.debug()</code> statements in code, but it's printing twice in below fachene.</p>
  
  <blockquote>
    <p>2012-10-17 10:53:34,791, MessageListenerThreadPool : 0, [package
    name], Entered the method(),  ,2012-10-17 10:53:34,791
    MessageListenerThreadPool : 0 DEBUG [package name] Entered the
    method()</p>
  </blockquote>
  
  <p>Please help me why it's printing twice?</p>
  
  <p>Below is my log4j configuration.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"&gt;
  
  &lt;log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false"&gt;
      &lt;appender name="infoLogsFile" class="org.apache.log4j.FileAppender"&gt;
        &lt;param name="File" value="Application.log"/&gt;
         &lt;param name="Threshold" value="DEBUG"/&gt;
        &lt;layout class="org.apache.log4j.PatternLayout"&gt;
           &lt;!-- The default pattern: Date Priority [Category] Message\n --&gt;
           &lt;param name="ConversionPattern" value="%d %t %-5p [%c] %m%n"/&gt;
        &lt;/layout&gt;
     &lt;/appender&gt;   
  
     &lt;appender name="fatalLogsFile" class="org.apache.log4j.FileAppender"&gt;
           &lt;param name="File" value="Application_Func_Point.log"/&gt;
         &lt;param name="Threshold" value="FATAL"/&gt;
           &lt;layout class="org.apache.log4j.PatternLayout"&gt;
               &lt;param name="ConversionPattern" value="%d, %t, [%c], %m, %n,"/&gt;
           &lt;/layout&gt;
     &lt;/appender&gt;
  
  
     &lt;appender name="custom" class="org.apache.log4j.RollingFileAppender"&gt;
     &lt;param name="File" value="Application.log"/&gt;
     &lt;param name="Append" value="true"/&gt;
      &lt;param name="Threshold" value="DEBUG"/&gt;
     &lt;param name="MaxFileSize" value="75000KB"/&gt;
     &lt;param name="maxBackupIndex" value="500"/&gt;
     &lt;layout class="org.apache.log4j.PatternLayout"&gt;
        &lt;param name="ConversionPattern" value="%d, %t, [%c], %m, %n,"/&gt;
     &lt;/layout&gt;       
     &lt;/appender&gt;
  &lt;logger name="com.unisys"&gt; `
      &lt;level value="debug" /&gt; 
  &lt;/logger&gt;
     &lt;!-- ======================= --&gt;
     &lt;!-- Setup the Root category --&gt;
     &lt;!-- ======================= --&gt;
     &lt;root&gt; 
      &lt;priority value ="debug" /&gt; 
         &lt;appender-ref ref="custom"/&gt;
      &lt;appender-ref ref="fatalLogsFile"/&gt;
      &lt;appender-ref ref="infoLogsFile"/&gt;
     &lt;/root&gt;
  &lt;/log4j:configuration&gt;
  </code></pre>
  
  <p>Thanks</p>