//load some patterns from a text file:
    Set<String> allowListPatterns = ListMatcher.readPatternsFromFile(new File("/tmp/allow.txt"));

    PatternList patternList = new PatternList(allowListPatterns, "@", false);
        
    //do some matching:
    boolean inAllowlist = patternList.matches("[email protected]");

    
    //load some patterns from a text file:
    Set<String> allowListPatterns = ListMatcher.readPatternsFromFile(new File("/tmp/someAllowlist.txt"));
    Set<String> denyListPatterns = ListMatcher.readPatternsFromFile(new File("/tmp/someDenylist.txt"));

    //some options
    boolean caseSensitive = false;

    //If you have multiple lists to manage:
    Map<String,PatternList> listByName = new HashMap<>();

    listByName.put("email.allowlist", new PatternList(allowListPatterns, "@", caseSensitive));
    listByName.put("email.denylist", new PatternList(denyListPatterns, "@", caseSensitive));

    ListMatcher listMatcher = new ListMatcher(listByName);
    
    //do some matching:
    boolean inAllowlist = listMatcher.matchesList("email.allowlist", "[email protected]");
    boolean inDenylist = listMatcher.matchesList("email.denylist", "[email protected]");