in src/main/java/software/aws/glue/tableversions/lambda/TableVersionsCleanupPlannerLambda.java [147:151]
public static List<String> tokenizeStrings(String str, String separator) {
List<String> tokenList = Collections.list(new StringTokenizer(str, separator)).stream()
.map(token -> (String) token).collect(Collectors.toList());
return tokenList;
}