log4j:ERROR Could not parse file

Hi,
   I am trying to use log4j in my application and i am getting following
error. Thanks a lot for the help in advance.

log4j:ERROR Could not parse file [nullWEB-INF/logging/log4j.xml].
java.io.FileNotFoundException:
/app/ENP/user_projects/domains/Domain2/nullWEB-INF/logging/log4j.xml (No
such file or directory)
        at java.io.FileInputStream.open(Native Method)
        at java.io.FileInputStream.<init>(FileInputStream.java:106)
        at java.io.FileInputStream.<init>(FileInputStream.java:66)
        at
sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:70)
        at
sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:161)
        at java.net.URL.openStream(URL.java:1010)
        at oracle.xml.parser.v2.XMLReader.openURL(XMLReader.java:2650)
        at oracle.xml.parser.v2.XMLReader.pushXMLReader(XMLReader.java:253)
        at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:222)
        at
oracle.xml.jaxp.JXDocumentBuilder.parse(JXDocumentBuilder.java:155)
        at
weblogic.xml.jaxp.RegistryDocumentBuilder.parse(RegistryDocumentBuilder.java:163)
        at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:208)
        at
org.apache.log4j.xml.DOMConfigurator$1.parse(DOMConfigurator.java:749)
        at
org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:866)
        at
org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:755)
        at
org.apache.log4j.xml.DOMConfigurator.configure(DOMConfigurator.java:891)
        at gov.cms.esrd.qip.utilities.Log4jInit.init(Log4jInit.java:16)
        at javax.servlet.GenericServlet.init(GenericServlet.java:241)
        at
weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:283)
        at
weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at
weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
        at
weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:64)
        at
weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:58)
        at
weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:48)
        at
weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:539)
        at
weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1985)
        at
weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1959)
        at
weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1878)
        at
weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:3153)
        at
weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1508)

Here is my web.xml code

   <servlet>
      <servlet-name>log4j-init</servlet-name>

     
<servlet-class>gov.cms.esrd.qip.utilities.Log4jInit</servlet-class>

      <init-param>
         <param-name>log4j-init-file</param-name>

         <param-value>WEB-INF/logging/log4j.xml</param-value>
      </init-param>

      <load-on-startup>1</load-on-startup>
   </servlet>

configuration file (Log4jInit)code

package gov.cms.esrd.qip.utilities;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.xml.DOMConfigurator;

public class Log4jInit extends HttpServlet {

    public void init() {

      String prefix = getServletContext().getRealPath("/"); 

      String file = getInitParameter("log4j-init-file");   

// if the log4j-init-file is not set, then no point in trying

        if (file != null) {

            DOMConfigurator.configure(prefix + file); 
       }

    }

    public void doGet(HttpServletRequest req,
 HttpServletResponse res) {

    }

}

Log4j.xml file

<?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.out"/>

    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%-5p %c{1} - %m%n"/>

    </layout>
  </appender>
  <appender name="WeblogicAppender"
class="gov.cms.esrd.qip.logging.WeblogicAppender">

    <layout class="org.apache.log4j.PatternLayout"></layout>
  </appender>

  <appender name="RD"
class="org.apache.log4j.DailyRollingFileAppender"> 
  <param name="file" value="logs/RD.BPM.log" />

  <param name="DatePattern" value="'.'yyy-MM-dd" />
    <layout class="org.apache.log4j.PatternLayout"> 

      <!-- Print the date in ISO 8601 format -->

      <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n"/>

    </layout> 

  </appender>
  <root>

    <priority value="debug"/>
    <appender-ref ref="RD"/>
  </root>

</log4j:configuration>

Thanks.
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