storm-apt/api/src/main/java/com/turbomanage/storm/csv/CsvUtils.java
public static String unescapeCsv(String str) {
		if (str == null)
			return null;
		if (!(str.charAt(0) == QUOTE && str.charAt(str.length() - 1) == QUOTE))
			return str;
		String quoteless = str.substring(1, str.length() - 1);
		return quoteless.replace(QUOTE_STR + QUOTE_STR, QUOTE_STR);
	}
public static String unescapeCsv(String str) {
		if (str == null)
			return null;
		if (!(str.charAt(0) == QUOTE && str.charAt(str.length() - 1) == QUOTE))
			return str;
		String quoteless = str.substring(1, str.length() - 1);
		return quoteless.replace(QUOTE_STR + QUOTE_STR, QUOTE_STR);
	}
Removes enclosing quotes and unescapes double quotes

@param str An escaped CSV value
@return the original value