if(loader != null) return loader.loadClass(className); else return null;
if (remoteCodebase == null || useCodebaseOnly) return RMIClassLoader.loadClass(remoteCodebase, className);
  public Class loadClass(String className, String remoteCodebase,		  	 ClassLoader loader)    throws ClassNotFoundException  {    try{      if (remoteCodebase == null)	return RMIClassLoader.loadClass(className);      else	return RMIClassLoader.loadClass(remoteCodebase, className);    }    catch (MalformedURLException e1)      {	throw new ClassNotFoundException(className, e1);      }    catch(ClassNotFoundException e2)      {	if(loader != null)	  return loader.loadClass(className);	else	  return null;      }  }