Java: Lire le contenu d’un fichier Jar

    import java.util.jar.*;
    import java.util.zip.*;
    import java.io.*;
    private void readJar(String filename)
    {
          File file = new File(filename);
          if(!filename.endsWith(".jar")||!file.exists())
           {
          System.out.println("Fichier jar introuvable: "+filename);
          return;
           }
        try
        {
        JarFile jarfile = new JarFile(filename);
         for (Enumeration elem = jarfile.entries(); elem.hasMoreElements();)
         {
         System.out.println(elem.nextElement());
         }
        }catch(Exception err)
        {
         err.printStackTrace();
         return;
        }
    }