Jar ファイルからのクラス読み込み処理

public class Adapt extends ClassLoader {
 private final String className;
 private final ByteArrayOutputStream baos;
	
 public Adapt(ByteArrayOutputStream baos, String className){
  this.baos = baos;
  this.className = className;
		
  System.out.println("this.baos: " + this.baos);
  System.out.println("this.className: " + this.className);
 }

 protected synchronized Class loadClass(final String name, final boolean resolve) throws ClassNotFoundException
 {
  byte[] b = null;
  byte[] bytes = baos.toByteArray();
			
  try{
   ClassReader cr = new ClassReader(new ByteArrayInputStream(bytes));
 　ClassWriter cw = new ClassWriter(true, true);
 　NotifierClassVisitor ncv = new NotifierClassVisitor(cw);
 　cr.accept(ncv, false);
 　b = cw.toByteArray();
  }catch(Exception e){
 　throw new ClassNotFoundException(name, e);
  }	
				
  // stores the adapted class on disk
  ...
	
  // returns the adapted class
  return defineClass(name, b, 0, b.length);
 }
	

  public static void main(final String args[]) throws Exception {
   File file = new File(args[0]);
   JarFile jarfile = new JarFile(file);
   JarInputStream jis = new JarInputStream(new BufferedInputStream(new FileInputStream(file)));
			
   JarEntry entry= null;
				
   while((entry = (JarEntry) jis.getNextEntry()) != null){ 
    String name = entry.getName();
    String className = name.replace("/", "\\.").replaceAll("\\.class", "");
				
    if(entry.getName().endsWith(".class")){
     int len;
     byte buffer[] = new byte[1024];
     ByteArrayOutputStream baos = new ByteArrayOutputStream();
					
     for(;;){
      len = jis.read(buffer);
      if(len < 0){
       break;
      }
      baos.write(buffer, 0, len);
     }
					
     byte[] bytes = baos.toByteArray();

     System.out.println("loading " + name + " ... ");
     System.out.println("bytes = " + bytes);
    }
				 
    ClassLoader loader = new Adapt(baos, className);
    Class c = loader.loadClass(className);
   }
  }
 }