@SuppressWarnings("rawtypes")
final class ZipResources {
   private Hashtable htSizes=new Hashtable();  
   private Hashtable htJarContents=new Hashtable();
   private String jarFileName;
   public LevelResources(String jarFileName) {
      this.jarFileName=jarFileName;
      init();
   }
   public byte[] getResource(String name) {
      return (byte[])htJarContents.get(name);
   }
   @SuppressWarnings({ "unchecked" })
   private void init() {
      try {
          ZipFile zf = new ZipFile(jarFileName);
          Enumeration e = zf.entries();
          while (e.hasMoreElements()) {
              ZipEntry ze = (ZipEntry)e.nextElement();
              htSizes.put(ze.getName(), (int) ze.getSize());
          }
          zf.close();
          FileInputStream fis = new FileInputStream(jarFileName);
          BufferedInputStream bis = new BufferedInputStream(fis);
          ZipInputStream zis = new ZipInputStream(bis);
          ZipEntry ze = null;
          while ((ze = zis.getNextEntry()) != null) {
             if (ze.isDirectory()) {
                continue;
             }
             int size = (int)ze.getSize();
             if (size == -1) {
                size = ((Integer)htSizes.get(ze.getName())).intValue();
             }
             byte[] b = new byte[size];
             int rb = 0;
             int chunk = 0;
             while ((size - rb) > 0) {
                 chunk=zis.read(b, rb, size - rb);
                 if (chunk==-1) {
                	 
                	 
                	 
                    break;
                 }
                 rb += chunk;
             }
             htJarContents.put(ze.getName(),b);
          }
       } catch (NullPointerException e) {
          System.out.println("done.");
       } catch (FileNotFoundException e) {
          e.printStackTrace();
       } catch (IOException e) {
          e.printStackTrace();
       }
   }
}