@SuppressWarnings("rawtypes")
	public static String toListString(List list) {
		StringBuilder sb = new StringBuilder();
		sb.append("[");
		for (Object o : list) {
			sb.append(o.toString()).append(", ");
		}
		sb.append("]");
		String s = sb.toString();
		sb.setLength(0);
		sb = null;
		return s;
	}