private void addSubfolders(){
		for(File dir : this.pluginRootDirectory.listFiles()){
			if(dir.isDirectory()){
				try {
					File subfolder = new File(dir.toURI());
					Log.getLogger().log(Level.INFO, "Setting sub directoy: " + subfolder.toURI().toURL());
					addURL(subfolder.toURI().toURL());
				} catch (IOException e) {
					Log.getLogger().log(Level.SEVERE, "IOException", e);
				}
			}
		}
	}