common/src/main/java/org/jboss/pnc/common/util/StringUtils.java
public static Integer[] deserializeInt(String string) {
        if (string == null) {
            return new Integer[0];
        }
        return Arrays.stream(string.split(","))
                .filter(s -> !s.equals(""))
                .map(Integer::parseInt).toArray(Integer[]::new);
    }
public static Integer[] deserializeInt(String string) {
        if (string == null) {
            return new Integer[0];
        }
        return Arrays.stream(string.split(","))
                .filter(s -> !s.equals(""))
                .map(Integer::parseInt).toArray(Integer[]::new);
    }
Parse comma separated string to Integer array.
@return An empty array when the string parameter is empty or null.