@SuppressWarnings("unchecked")
	public void loadDb() {
		try {
			this.setMusicBuffer((HashMap<String, MusicPersisted>)
								 this.getMusicDbIn().readObject());
			this.setUserBuffer((HashMap<Email, UserPersisted>)
								this.getUserDbIn().readObject());
		} catch (IOException e) {
			this.setMusicBuffer(new HashMap<String, MusicPersisted>());
			this.setUserBuffer(new HashMap<Email, UserPersisted>());

		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} 
		
	}