code: protected Matcher<?>[] getMatchers() {
          Matcher<?>[] matchers = new Matcher<?>[tasks.size()];
          for (int i = 0; i < matchers.length; i++) {
              matchers[i] = tasks.get(i).createMatcher();
          }
          return matchers;
      }
docs: Creates and return all the children matchers.
  
  @return matcher array