code: public void registerHanders(String packageString) {
  		List<String> list = AnnotationDetector.scanAsList(ExceptionHandler.class, packageString);
  		for (String handler : list) {
  //			System.out.println(handler);						
  			JKExceptionHandler<? extends Throwable> newInstance = JKObjectUtil.newInstance(handler);
  			Class<? extends Throwable> clas = JKObjectUtil.getGenericParamter(handler);
  			setHandler(clas, newInstance);
  		}
  	}
docs: Register handers.
  
  @param packageString the package string