code: public static Object instantiate(ClassLoader loader, String name) throws IOException, ClassNotFoundException
  	{
  		return internalInstantiate(loader, name, null, null);
  	}
docs: Obtains an instance of a JavaBean specified the bean name using the specified class loader.
  <p>
  If the specified class loader is null, the system class loader is used.
  </p>
  
  @param loader
  the specified class loader. It can be null.
  @param name
  the name of the JavaBean
  @return an isntance of the bean.
  @throws IOException
  @throws ClassNotFoundException