No appenders could be found for logger

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: org.apache.log4j
Bundle-SymbolicName: org.apache.log4j
Bundle-Version: 9.0.1.20110423
Bundle-Vendor: Apache Log4j
Export-Package: org.apache.log4j,
org.apache.log4j.chainsaw,
org.apache.log4j.config,
org.apache.log4j.helpers,
org.apache.log4j.jdbc,
org.apache.log4j.jmx,
org.apache.log4j.lf5,
org.apache.log4j.lf5.config,
org.apache.log4j.lf5.util,
org.apache.log4j.lf5.viewer,
org.apache.log4j.lf5.viewer.categoryexplorer,
org.apache.log4j.lf5.viewer.configure,
org.apache.log4j.lf5.viewer.images,
org.apache.log4j.net,
org.apache.log4j.nt,
org.apache.log4j.or,
org.apache.log4j.or.jms,
org.apache.log4j.or.sax,
org.apache.log4j.spi,
org.apache.log4j.varia,
org.apache.log4j.xml
Eclipse-BuddyPolicy: registered
Bundle-RequiredExecutionEnvironment: JavaSE-1.6

 
/*******************************************************************************
* Copyright (c) 2005 John J. Franey
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
*******************************************************************************/
package IR_GIS;
 
import java.text.MessageFormat;
 
 
import org.apache.log4j.AppenderSkeleton;
import org.apache.log4j.Level;
import org.apache.log4j.spi.LoggingEvent;
import org.eclipse.core.runtime.ILog;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.osgi.framework.Bundle;
 
/**
* log4j appender to an eclipse plugin's Ilog.
* @author John J. Franey
*
*/
public class PluginLogAppender extends AppenderSkeleton
{
 
     
      private String symbolicName;
     
 
      /* (non-Javadoc)
      * @see org.apache.log4j.AppenderSkeleton#append(org.apache.log4j.spi.LoggingEvent)
      */
      protected void append(LoggingEvent event) {
           
            // don't go any further if event is not severe enough.
            if(! isAsSevereAsThreshold(event.getLevel())) return;
           
            ILog log = getBundleILog();
            if(log == null) return;
           
            // if throwable information is available, extract it.
            Throwable t = null;
            if(event.getThrowableInformation() != null && layout.ignoresThrowable())
                  t = event.getThrowableInformation().getThrowable();
           
            // build an Eclipse Status record, map severity and code from Event.
            Status s = new Status(getSeverity(event),
                        getSymbolicName(),
                        getCode(event),
                        layout.format(event), t);
 
           
            log.log(s);
 
      }
 
      /**
      * map LoggingEvent's level to Status severity
      * @param ev
      * @return
      */
      private int getSeverity(LoggingEvent ev) {
           
            Level level = ev.getLevel();
            if(level == Level.FATAL || level == Level.ERROR)
                  return IStatus.ERROR;
            else if(level == Level.WARN)
                  return IStatus.WARNING;
            else if(level == Level.INFO)
                  return IStatus.INFO;
            else // debug, trace and custom levels
                  return IStatus.OK;
      }
     
      /**
      * Return the pluginId under which the messages will be logged
      * @return
      */
      public String getSymbolicName() {
            return this.symbolicName;
      }
     
      public void setSymbolicName(String name) {
            this.symbolicName = name;
      }
      /**
      * map LoggingEvent to Status code
      * @param ev
      * @return
      */
      private int getCode(LoggingEvent ev) {
            return 0;
      }
     
      private ILog getBundleILog() {
            // get the bundle for a plug-in
            Bundle b = Platform.getBundle(getSymbolicName());
            if(b == null) {
                  String m = MessageFormat.format("Plugin: {0} not found in {1}.",    //$NON-NLS-1$
                              new Object[] {getSymbolicName(), this.name});
                  this.errorHandler.error(m);
                  return null;
            }
     
            return Platform.getLog(b);
           
 
      }
     
      public void close() {
            // nothing to close
      }
 
      public boolean requiresLayout() {
            return true;
      }
}

 
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: IR_GIS (TM)  Innovative Real-time Geographic Information System
Bundle-SymbolicName: IR_GIS;singleton:=true
Bundle-Version: 1.2.18
Bundle-Activator: IR_GIS.IRGISPlugin
Bundle-Vendor: Arising Technology Systems Pty Limited
Require-Bundle: org.apache.log4j,
ri.common,
net.refractions.udig.project,
net.refractions.udig.mapgraphic,
net.refractions.udig.printing.model,
net.refractions.udig.printing.ui,
net.refractions.udig.tool.default,
net.refractions.udig.tool.info,
net.refractions.udig.ui,
ri.checklogin;bundle-version="1.2.3";resolution:=optional,
ri.udig.InfotoolOverride;bundle-version="1.2.4";resolution:=optional
Import-Package: org.eclipse.ui.plugin,
org.slf4j
Eclipse-RegisterBuddy: org.apache.log4j
Bundle-RequiredExecutionEnvironment: JavaSE-1.6
Bundle-ActivationPolicy: lazy
Export-Package: IR_GIS;version="1.2.5"

 
// Obtain the properties file to start the appender
// the appender will be instantiated in this address space using this ClassLoader
IConfiguration config = ConfigurationFactory.getDefault();
String pathName = config.findPath("log4j.properties").toOSString(); //$NON-NLS-1$
System.err.println(String.format("Path=%s", pathName));
PropertyConfigurator.configure(pathName);
 
// Now obtain a logger, again instantiated via this ClassLoader
logger = LoggerFactory.getLogger(this.getClass());