code: protected String checkRoot(String path){
  		if(path==null||path.length()==0||path.equals("/")){
  			return "";
  			
  		}else if(path.endsWith("/")){
  			return path.substring(0,path.length()-1);
  		}else if(path.startsWith("/")){
  			return path.substring(1,path.length());
  		}else{
  			return  path;
  		}
  	}
docs: 检查classpath路径
  @param path
  @return