public void taskName(Pattern expression) {
        taskNames.add(expression);
    }

    public void taskName(String expression) {
        taskNames.add(Pattern.compile(expression));
    }

    public void setTaskNames(Collection<Pattern> expressions) {
        taskNames.clear();
        taskNames.addAll(expressions);
    }

    public Set<String> getBaseClasses() {
        return baseClasses;
    }