/**
    * Scan the current context's classloader to locate any potential sources of Hibernate mapping files.
    *
    * @throws DeploymentException
    */
   private void scanForMappings() throws DeploymentException
   {
      // Won't this cause problems if start() is called from say the console?
      // a way around is to locate our DeploymentInfo and grab its ucl attribute
      // for use here.
      URL[] urls = null;
      ClassLoader cl = Thread.currentThread().getContextClassLoader();
      if (cl instanceof RepositoryClassLoader)
      {
         urls = ((RepositoryClassLoader)cl).getClasspath();
      }
      else if (cl instanceof URLClassLoader)
      {
         urls = ((URLClassLoader)cl).getURLs();
      }
      else
      {
         throw new DeploymentException("Unable to determine urls from classloader [" + cl + "]");
      }

      // Search the urls for each of the classpath entries for any containing
      // hibernate mapping files or archives
      for (int i = 0; i < urls.length; i++)
      {
         final File entry = new File(urls[i].getFile());
         log.trace("checking classpath entry [" + entry + "]");
         if (!entry.exists())
         {
            continue;
         }

         if (!entry.isDirectory())
         {
            // This entry is not a directory, meaning it is a file of
            // some sort.  If it is an archive, we are interested in it...
            if (isArchive(entry))
            {
               log.trace("classpath entry was an archive file...");
               archiveClasspathUrls.add(entry);
            }
            else
            {
               log.trace("classpath entry was a non-archive file...");
            }
         }
         else
         {
            log.trace("classpath entry was a directory...");

            // we have a directory, add it to the list of directory classpath urls
            directoryClasspathUrls.add(entry);
         }
      }
   }