probleme de log

bonjour à tous;

voila mon logger marche bien lorsque que je l'utilise d'un main de test, mais des que je l insere dans mon appli (sous eclipse) ben ca marche plus ....

le code du loggger

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package de.conti.ptc.tdm.utils.NetworkTest;
 
    import java.io.FileInputStream;
    import java.io.IOException;
    import java.net.InetAddress;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    import java.util.Properties;
 
    import org.apache.log4j.BasicConfigurator;
    import org.apache.log4j.DailyRollingFileAppender;
    import org.apache.log4j.Logger;
    import org.apache.log4j.PatternLayout;
 
    public class NetworkTestLogger {
        private static NetworkTestLogger instance    = null;
        private String configFilePath = "../../ip3.ini";
        protected static long milliseconds_since_start;
        private static Logger    logger      = null;
        private Properties properties;
 
        public NetworkTestLogger()  {
            logger=Logger.getLogger("NetworkTestLogger");            
        }
 
        //find pathfile of file '.dat' in configfile
        protected String getProperty(String propertyName) throws IOException{
            String propertyValue ;
            FileInputStream in;
 
            if (properties == null){
 
                properties = new Properties();
                in = new FileInputStream(configFilePath);
                properties.load(in);
                in.close();
            }
 
            propertyValue = properties.getProperty(propertyName);  
 
            if (propertyValue == null){
                propertyValue = "";
            }
 
            return (propertyValue);
        }
 
        public void sendLogger(String application,String action) throws IOException {   
            String pattern;
            DailyRollingFileAppender appender;
            PatternLayout layout;
 
            BasicConfigurator.configure();
 
            pattern =  "Tlse;"; //database
            pattern += application + ";";//program source
            pattern += action + ";";//done action
            pattern += System.getProperty("user.name") + ";";//user
            pattern += InetAddress.getLocalHost().getHostName() + ";"; //n° computer
            pattern += new SimpleDateFormat("dd/MM/yyyy HH:mm:ss").format(new Date())+ ";"; //date
            pattern += (System.currentTimeMillis() - milliseconds_since_start);// time in ms                        
 
            layout = new PatternLayout(pattern + "\n");                                                            
            appender = new DailyRollingFileAppender(layout, getProperty("logFolder") + "LogNetworkTest.dat", "'.'yyyy-ww");                      
            logger.addAppender(appender);            
            logger.debug(appender);             
        }
 
        public static NetworkTestLogger getInstance() throws IOException {
            if (instance == null) {            
                instance = new NetworkTestLogger();               
            }
            milliseconds_since_start = System.currentTimeMillis();
            return instance;
        }
 
}

celui de la classe de test

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package de.conti.ptc.tdm.utils.NetworkTest;
 
 
public class Test {
 
    public static void main(String[] args) {           
        try {
            NetworkTestLogger.getInstance();      
            Thread.sleep(1000);
            NetworkTestLogger.getInstance().sendLogger("source","action n°  ");
            } 
        catch (Exception e) {           
 
            }
    }
 
}

celui de la partie du programme ou ca marche pas

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package de.conti.ptc.tdm.infopool3;
 
import java.io.IOException;
 
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.ui.part.ViewPart;
 
import de.conti.ptc.tdm.utils.NetworkTest.NetworkTestLogger;
 
import de.conti.ptc.tdm.utils.calendarForIp3.ColorCache;
import de.conti.ptc.tdm.utils.persistence.ToplinkSession;
import de.conti.ptc.tdm.utils.plugin.OpenViewAction;
 
/**
 * Empty view which allows to display something when no plugins are opened.
 */
public class EmptyView extends ViewPart {
 
	//ID of the view
	public static final String ID = OpenViewAction.getEmptyViewId();	
 
	//Text displayed inside the view
	private static Label infoLabel;
	private static Composite container;
	private static ProgressBar progressBar;
	private static boolean firstLoad = true;
	private static float connectionTime;
	private static NetworkTestLogger networktestlogger;
 
	/**
         * Defines the content of the view
         */
	public void createPartControl(Composite parent) {
 
		container = new Composite(parent, SWT.NONE);
 
		container.setLayout(new GridLayout());
		container.setBackground(ColorCache.getWhite());
 
 
		if (firstLoad){
 
			/*try {
				Integer.parseInt("Hello world");
 
			} catch (Exception e) {   
				//marche pas !!!
				IP3Exception.getInstance(e);
			}*/
 
 
			for (int i=0;i<20;i++){
				new Label(container,SWT.NONE).setLayoutData(new GridData(SWT.CENTER, SWT.LEFT, true, false, 1, 1));;
			}
 
			infoLabel = new Label(container, SWT.NONE);
			infoLabel.setFont(new Font(parent.getDisplay(),"Arial",10,SWT.BOLD));
			infoLabel.setBackground(ColorCache.getWhite());
 
			infoLabel.setText("Connecting to the Database...");
			infoLabel.setLayoutData(new GridData(SWT.CENTER, SWT.LEFT, true, false, 1, 1));
 
			progressBar = new ProgressBar(container,SWT.INDETERMINATE|SWT.BORDER);
			progressBar.setLayoutData(new GridData(SWT.CENTER, SWT.LEFT, true, true, 1, 1));
 
			progressBar.setMinimum(0);
			progressBar.setMaximum(100);
			progressBar.setSelection(30);
			progressBar.setBounds(0,0,250,20);
 
			firstLoad = false;
		}
	}
 
	/**
         * Actions to do when the focus is on the view
         */
	public void setFocus() {
	}
 
 
	public static void connection(){
 
 
		final Thread threadEndConnection = new Thread() {
			public void run() {
				connectionTime = (float) ((System.currentTimeMillis() - ApplicationWorkbenchWindowAdvisor.startTime) / 1000.0);
 
				progressBar.dispose();
 
				infoLabel.setText("       Connected in " + connectionTime + " s");
 
                try {
                    NetworkTestLogger.getInstance().sendLogger("IP3","TopLinkLoad");
                } catch (IOException e) {
                }
 
			}
		};
 
		Thread threadStartConnection = new Thread() {
			public void run() {
 
	            try {
                    NetworkTestLogger.getInstance();
                } catch (IOException e1) {
                }      
 
 
			    ToplinkSession.getInstance();
				try{
					Display.getDefault().syncExec(threadEndConnection);
				}
				catch(Exception e){
					//if the users opens a tab without waiting for the end of the connection
					//do nothing
				}
			}
		};
 
 
		threadStartConnection.start();
	}
}

dans le cas ou ca marche pas je passe bien dans toutes mes fonctions appelées mais les 2 commandes :

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logger.addAppender(appender);            
            logger.debug(appender);

ne se deroule pas?????

et la je sais pas pourquoi ..

help me please